diff --git a/Scripts/Analysis/DIF/pcm_dif_50.do b/Scripts/Analysis/DIF/pcm_dif_50.do index 61d6dad..2a67d1c 100644 --- a/Scripts/Analysis/DIF/pcm_dif_50.do +++ b/Scripts/Analysis/DIF/pcm_dif_50.do @@ -18,9 +18,9 @@ * Scenarios with : J=4 *========================== - ****** Scenarios with DIF on 1 item + *************************************************** Scenarios with DIF on 1 item - ** Scenario 5: J = 4 items / M = 2 modalities / DIF size 0.3 + ************************************************** Scenario 5: J = 4 items / M = 2 modalities / DIF size 0.3 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -79,7 +79,7 @@ } -** Scenario 6: J = 4 items / M = 4 modalities / DIF size 0.3 +************************************************** Scenario 6: J = 4 items / M = 4 modalities / DIF size 0.3 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -157,7 +157,7 @@ putexcel A1=matrix(outmat), colnames } -** Scenario 7: J = 4 items / M = 2 modalities / DIF size 0.5 +************************************************** Scenario 7: J = 4 items / M = 2 modalities / DIF size 0.5 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -216,7 +216,8 @@ putexcel A1=matrix(outmat), colnames } -** Scenario 8: J = 4 items / M = 4 modalities / DIF size 0.5 + +************************************************** Scenario 8: J = 4 items / M = 4 modalities / DIF size 0.5 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -241,52 +242,229 @@ forvalues k=1/1000 { } preserve qui keep if replication==`k' - local difitems1=dif1 - forvalues i=1/`nbitems' { - if (`i'==`difitems1') { - local constrnt = "constraint 1 2*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([2.item`i']_cons-([2.item`i']_cons+[2.item`i'] tt))" - local constrnt2 = "constraint 2 3*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([3.item`i']_cons-([3.item`i']_cons+[3.item`i'] tt))" + +* MERGE des modalités si non représentées + local com_z = 0 + qui gen comz = 0 + forvalues j = 1 / `nbitems' { + local recoda_`j' = 0 + qui tab item`j' if tt == 0, matrow(rect1_g0_`j') matcell(nbrt1_g0_`j') + local maxm`j'_t1_g0 = rect1_g0_`j'[r(r),1] + local minm`j'_t1_g0 = rect1_g0_`j'[1,1] + + qui tab item`j' if tt == 1, matrow(rect1_g1_`j') matcell(nbrt1_g1_`j') + local minm`j'_t1_g1 = rect1_g1_`j'[1,1] + local maxm`j'_t1_g1 = rect1_g1_`j'[r(r),1] + + local minm_`j' = min(`minm`j'_t1_g0',`minm`j'_t1_g1') + local maxm_`j' = max(`maxm`j'_t1_g0',`maxm`j'_t1_g1') + local nbm_`j' = `=`maxm_`j''-`minm_`j''' + + if `minm_`j'' != 0 & `com_z' == 0 { + local com_z = 1 + } + + qui count if item`j' == 3 & tt == 0 + local mod3plac = r(N) + qui count if item`j' == 3 & tt == 1 + local mod3tt = r(N) + local nb_rn3 = min(`mod3plac',`mod3tt') + if `nb_rn3'==0 { + qui replace comz = 1 + } + + forvalues m = 0/`=`nbm_`j''-1' { + qui count if item`j' == `m' & tt == 0 + local nb_rn1_g0 = r(N) + qui count if item`j' == `m' & tt == 1 + local nb_rn1_g1 = r(N) + local nb_rn = min(`nb_rn1_g0',`nb_rn1_g1') + if `nb_rn' == 0 { + qui replace comz = 1 + local recoda_`j' = 1 + if `m' == 0 | `m' < `minm`j'_t1_g0' | `m' < `minm`j'_t1_g1' { + local stop = 1 + forvalues kk = 1/`=`nbm_`j''-`m'' { + qui count if item`j' == `=`m' + `kk'' & tt == 0 + local v`kk'1_0 = r(N) + qui count if item`j' == `=`m' + `kk'' & tt == 1 + local v`kk'1_1 = r(N) + if (`v`kk'1_0' != 0 | `v`kk'1_1' != 0) & `stop' != 0 { + qui replace item`j'= `=`m'+`kk'' if item`j'==`m' + local zzz=`j'+`nbitems' + *qui replace item`zzz'=`=`m'+`kk'' if item``=`j'+`nbitems'''==`m' + *di "WARNING SCENARIO `k': items `j': answers `m' and `=`m'+`kk'' merged" + local stop = 0 + } + } + } + else if `m' == `=`nbm_`j''-1' | `m' >= `maxm`j'_t1_g1' { + local stop = 1 + forvalues kk = 1/`=`m'' { + qui count if item`j' == `=`m' - `kk'' & tt == 0 + local v`kk'1_0 = r(N) + qui count if item`j' == `=`m' - `kk'' & tt == 1 + local v`kk'1_1 = r(N) + if (`v`kk'1_0' != 0 | `v`kk'1_1' != 0) & `stop' != 0 { + qui replace item`j'= `=`m' - `kk'' if item`j'==`m' + local zzz=`j'+`nbitems' + *qui replace item`zzz'= `=`m' - `kk'' if item`zzz'==`m' + *di "WARNING SCENARIO `k': items `j': answers `m' and `=`m'+`kk'' merged" + local stop = 0 + } + } + } + else { + if runiform()>0.5{ + local stop = 1 + forvalues kk = 1/`m' { + qui count if item`j' == `=`m' - `kk'' & tt == 0 + local v`kk'1_0 = r(N) + qui count if item`j' == `=`m' - `kk'' & tt == 1 + local v`kk'1_1 = r(N) + if (`v`kk'1_0' != 0 | `v`kk'1_1' != 0) & `stop' != 0 { + qui replace item`j'= `=`m'-`kk'' if item`j'==`m' + local zzz=`j'+`nbitems' + *qui replace item`zzz'=`=`m'-`kk'' if item``=`j'+`nbitems'''==`m' + *di "WARNING SCENARIO `k': items `j': answers `m' and `=`m'+`kk'' merged" + local stop = 0 + } + } + } + else { + local stop = 1 + forvalues kk = 1/`=`nbm_`j''-`m'' { + qui count if item`j' == `=`m' + `kk'' & tt == 0 + local v`kk'1_0 = r(N) + qui count if item`j' == `=`m' + `kk'' & tt == 1 + local v`kk'1_1 = r(N) + if (`v`kk'1_0' != 0 | `v`kk'1_1' != 0) & `stop' != 0{ + qui replace item`j'=`=`m' + `kk'' if item`j'==`m' + local zzz=`j'+`nbitems' + *qui replace item`zzz'=`=`m' + `kk'' if item``=`j'+`nbitems'''==`m' + *di "WARNING SCENARIO `k': items `j': answers `m' and `=`m'+`kk'' merged" + local stop = 0 + } + else { + if `stop' != 0 { + qui replace item`j'= `nbm_`j'' if item`j'==`m' + local zzz=`j'+`nbitems' + *qui replace item`zzz'= `nbm_`j'' if item``=`j'+`nbitems'''==`m' + *di "WARNING SCENARIO `k': items `j': answers `m' and `=`m'+`kk'' merged" + local stop = 0 + } + } + } + } + } + } } - } - local mod "gsem " - forvalues i=1/`nbitems' { - if (`i'==`difitems1') { - local mod = "`mod'"+"(1.item`i'<-THETA@1 tt)(2.item`i'<-THETA@2 tt)(3.item`i'<-THETA@3 tt)" + qui levelsof item`j' + local val = r(levels) + local checker: word 1 of `val' + local checker2: word 2 of `val' + local checker3: word 3 of `val' + if (`checker'!=0) { + qui recode item`j' (`checker'=0) (`checker2'=1) (`checker3'=2) } - else { - local mod = "`mod'"+"(1.item`i'<-THETA@1)(2.item`i'<-THETA@2)(3.item`i'<-THETA@3)" + else if (`checker2'!=1) { + qui recode item`j' (`checker2'=1) (`checker3'=2) } - } - local mod = "`mod'" + "(THETA<-tt), mlogit tol(0.01) iterate(500) latent(THETA) nocapslatent constraint(1 2)" - qui `constrnt' - qui `constrnt2' - qui `mod' - mat V=r(table) - mat W=V[1..2,1...] - forvalues j=1/`nbitems' { - if (`j'<`difitems1') { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+3] // items avant le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+5] // items avant le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+7] // items avant le premier dif - } - else if (`j'==`difitems1') { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+4] // items du le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+7] // items du le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+10] // items du le premier dif } + else if (`checker3'!=2) { + qui recode item`j' (`checker3'=2) } + } + +qui valuesof comz +local val = r(values) +local checker: word 1 of `val' + +* replications avec 3 mod +if (`checker' == 1) { +local difitems1=dif1 +forvalues i=1/`nbitems' { + if (`i'==`difitems1') { + local constrnt = "constraint 1 2*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([2.item`i']_cons-([2.item`i']_cons+[2.item`i'] tt))" + } +} +local mod "gsem " +forvalues i=1/`nbitems' { + if (`i'==`difitems1') { + local mod = "`mod'"+"(1.item`i'<-THETA@1 tt)(2.item`i'<-THETA@2 tt)" + } else { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+6] // items avant le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+8] // items avant le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+10] // items avant le premier dif - } + local mod = "`mod'"+"(1.item`i'<-THETA@1)(2.item`i'<-THETA@2)" } - mat outmat[`k',3*`nbitems'+1] = W[1,7*(`difitems1'-1)+2] // coef de dif - mat outmat[`k',3*`nbitems'+2] = W[1,7*(`difitems1'-1)+5] // coef de dif - mat outmat[`k',3*`nbitems'+3] = W[1,7*(`difitems1'-1)+8] // coef de dif - mat outmat[`k',3*`nbitems'+4] = W[1,7*`nbitems'+4] // beta - mat outmat[`k',3*`nbitems'+5] = W[2,7*`nbitems'+4] // se beta - mat outmat[`k',3*`nbitems'+6] = `difitems1' // numéro item de dif - restore +} +local mod = "`mod'" + "(THETA<-tt), mlogit tol(0.01) iterate(500) latent(THETA) nocapslatent constraint(1)" +qui `constrnt' +qui `mod' +mat V=r(table) +mat W=V[1..2,1...] +forvalues j=1/`nbitems' { + + mat outmat[`k',3*`j'-2] = W[1,colnumb(W,"1.item`j':_cons")] // items avant le premier dif + mat outmat[`k',3*`j'-1] = W[1,colnumb(W,"2.item`j':_cons")] // items avant le premier dif + mat outmat[`k',3*`j'] = W[1,colnumb(W,"3.item`j':_cons")] // items avant le premier dif +} + mat outmat[`k',3*`nbitems'+1] = W[1,colnumb(W,"1.item`difitems1':tt")] // coef de dif + mat outmat[`k',3*`nbitems'+2] = W[1,colnumb(W,"2.item`difitems1':tt")] // coef de dif + mat outmat[`k',3*`nbitems'+3] = W[1,colnumb(W,"3.item`difitems1':tt")] // coef de dif + mat outmat[`k',3*`nbitems'+4] = W[1,colnumb(W,"THETA:tt")] // beta + mat outmat[`k',3*`nbitems'+5] = W[2,colnumb(W,"THETA:tt")] // se beta + mat outmat[`k',3*`nbitems'+6] = `difitems1' // numéro item de dif + restore +} + +* replications sans problèmes +else { +local difitems1=dif1 +forvalues i=1/`nbitems' { + if (`i'==`difitems1') { + local constrnt = "constraint 1 2*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([2.item`i']_cons-([2.item`i']_cons+[2.item`i'] tt))" + local constrnt2 = "constraint 2 3*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([3.item`i']_cons-([3.item`i']_cons+[3.item`i'] tt))" + } +} +local mod "gsem " +forvalues i=1/`nbitems' { + if (`i'==`difitems1') { + local mod = "`mod'"+"(1.item`i'<-THETA@1 tt)(2.item`i'<-THETA@2 tt)(3.item`i'<-THETA@3 tt)" + } + else { + local mod = "`mod'"+"(1.item`i'<-THETA@1)(2.item`i'<-THETA@2)(3.item`i'<-THETA@3)" + } +} +local mod = "`mod'" + "(THETA<-tt), mlogit tol(0.01) iterate(500) latent(THETA) nocapslatent constraint(1 2)" +qui `constrnt' +qui `constrnt2' +qui `mod' +mat V=r(table) +mat W=V[1..2,1...] +forvalues j=1/`nbitems' { +if (`j'<`difitems1') { + mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+3] // items avant le premier dif + mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+5] // items avant le premier dif + mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+7] // items avant le premier dif + } +else if (`j'==`difitems1') { + mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+4] // items du le premier dif + mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+7] // items du le premier dif + mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+10] // items du le premier dif } + } +else { + mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+6] // items avant le premier dif + mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+8] // items avant le premier dif + mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+10] // items avant le premier dif + } +} + mat outmat[`k',3*`nbitems'+1] = W[1,7*(`difitems1'-1)+2] // coef de dif + mat outmat[`k',3*`nbitems'+2] = W[1,7*(`difitems1'-1)+5] // coef de dif + mat outmat[`k',3*`nbitems'+3] = W[1,7*(`difitems1'-1)+8] // coef de dif + mat outmat[`k',3*`nbitems'+4] = W[1,7*`nbitems'+4] // beta + mat outmat[`k',3*`nbitems'+5] = W[2,7*`nbitems'+4] // se beta + mat outmat[`k',3*`nbitems'+6] = `difitems1' // numéro item de dif + restore +} } putexcel set "`path_res'/out/8`scen'_`Nn'.xls", sheet("outmat") replace putexcel A1=matrix(outmat), colnames @@ -294,12 +472,13 @@ putexcel A1=matrix(outmat), colnames } -****** Scenarios with DIF on 2 items + +*************************************************** Scenarios with DIF on 2 items * Load pcm.ado adopath+"/home/corentin/Documents/These/Recherche/Simulations/Modules/" -** Scenario 9: J = 4 items / M = 2 modalities / DIF size 0.3 x2 +************************************************** Scenario 9: J = 4 items / M = 2 modalities / DIF size 0.3 x2 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -373,7 +552,7 @@ adopath+"/home/corentin/Documents/These/Recherche/Simulations/Modules/" -** Scenario 10: J = 4 items / M = 4 modalities / DIF size 0.3 x2 +************************************************** Scenario 10: J = 4 items / M = 4 modalities / DIF size 0.3x2 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -387,8 +566,8 @@ rename TT tt * Matrice de taille 1000 * 4 items + 1 DIF + beta + std beta + 1 dif local nbitems = 4 -local nbdif = 2 -local taillemat = 3*`nbitems'+6+2+`nbdif' +local nbdif = 1 +local taillemat = 3*`nbitems'+`nbdif'+6+2+1 mat outmat = J(1000,`taillemat',.) mat colnames outmat = "item1_1" "item1_2" "item1_3" "item2_1" "item2_2" "item2_3" "item3_1" "item3_2" "item3_3" "item4_1" "item4_2" "item4_3" "dif1_1" "dif1_2" "dif1_3" "dif2_1" "dif2_2" "dif2_3" "beta" "se_beta" "dif_item_1" "dif_item_2" di "Scenario 10`scen' / N=`Nnn'" @@ -398,83 +577,247 @@ forvalues k=1/1000 { } preserve qui keep if replication==`k' + + +* MERGE des modalités si non représentées + local com_z = 0 + qui gen comz = 0 + forvalues j = 1 / `nbitems' { + local recoda_`j' = 0 + qui tab item`j' if tt == 0, matrow(rect1_g0_`j') matcell(nbrt1_g0_`j') + local maxm`j'_t1_g0 = rect1_g0_`j'[r(r),1] + local minm`j'_t1_g0 = rect1_g0_`j'[1,1] + + qui tab item`j' if tt == 1, matrow(rect1_g1_`j') matcell(nbrt1_g1_`j') + local minm`j'_t1_g1 = rect1_g1_`j'[1,1] + local maxm`j'_t1_g1 = rect1_g1_`j'[r(r),1] + + local minm_`j' = min(`minm`j'_t1_g0',`minm`j'_t1_g1') + local maxm_`j' = max(`maxm`j'_t1_g0',`maxm`j'_t1_g1') + local nbm_`j' = `=`maxm_`j''-`minm_`j''' + + if `minm_`j'' != 0 & `com_z' == 0 { + local com_z = 1 + } + + qui count if item`j' == 3 & tt == 0 + local mod3plac = r(N) + qui count if item`j' == 3 & tt == 1 + local mod3tt = r(N) + local nb_rn3 = min(`mod3plac',`mod3tt') + if `nb_rn3'==0 { + qui replace comz = 1 + } + + forvalues m = 0/`=`nbm_`j''-1' { + qui count if item`j' == `m' & tt == 0 + local nb_rn1_g0 = r(N) + qui count if item`j' == `m' & tt == 1 + local nb_rn1_g1 = r(N) + local nb_rn = min(`nb_rn1_g0',`nb_rn1_g1') + if `nb_rn' == 0 { + qui replace comz = 1 + local recoda_`j' = 1 + if `m' == 0 | `m' < `minm`j'_t1_g0' | `m' < `minm`j'_t1_g1' { + local stop = 1 + forvalues kk = 1/`=`nbm_`j''-`m'' { + qui count if item`j' == `=`m' + `kk'' & tt == 0 + local v`kk'1_0 = r(N) + qui count if item`j' == `=`m' + `kk'' & tt == 1 + local v`kk'1_1 = r(N) + if (`v`kk'1_0' != 0 | `v`kk'1_1' != 0) & `stop' != 0 { + qui replace item`j'= `=`m'+`kk'' if item`j'==`m' + local zzz=`j'+`nbitems' + *qui replace item`zzz'=`=`m'+`kk'' if item``=`j'+`nbitems'''==`m' + *di "WARNING SCENARIO `k': items `j': answers `m' and `=`m'+`kk'' merged" + local stop = 0 + } + } + } + else if `m' == `=`nbm_`j''-1' | `m' >= `maxm`j'_t1_g1' { + local stop = 1 + forvalues kk = 1/`=`m'' { + qui count if item`j' == `=`m' - `kk'' & tt == 0 + local v`kk'1_0 = r(N) + qui count if item`j' == `=`m' - `kk'' & tt == 1 + local v`kk'1_1 = r(N) + if (`v`kk'1_0' != 0 | `v`kk'1_1' != 0) & `stop' != 0 { + qui replace item`j'= `=`m' - `kk'' if item`j'==`m' + local zzz=`j'+`nbitems' + *qui replace item`zzz'= `=`m' - `kk'' if item`zzz'==`m' + *di "WARNING SCENARIO `k': items `j': answers `m' and `=`m'+`kk'' merged" + local stop = 0 + } + } + } + else { + if runiform()>0.5{ + local stop = 1 + forvalues kk = 1/`m' { + qui count if item`j' == `=`m' - `kk'' & tt == 0 + local v`kk'1_0 = r(N) + qui count if item`j' == `=`m' - `kk'' & tt == 1 + local v`kk'1_1 = r(N) + if (`v`kk'1_0' != 0 | `v`kk'1_1' != 0) & `stop' != 0 { + qui replace item`j'= `=`m'-`kk'' if item`j'==`m' + local zzz=`j'+`nbitems' + *qui replace item`zzz'=`=`m'-`kk'' if item``=`j'+`nbitems'''==`m' + *di "WARNING SCENARIO `k': items `j': answers `m' and `=`m'+`kk'' merged" + local stop = 0 + } + } + } + else { + local stop = 1 + forvalues kk = 1/`=`nbm_`j''-`m'' { + qui count if item`j' == `=`m' + `kk'' & tt == 0 + local v`kk'1_0 = r(N) + qui count if item`j' == `=`m' + `kk'' & tt == 1 + local v`kk'1_1 = r(N) + if (`v`kk'1_0' != 0 | `v`kk'1_1' != 0) & `stop' != 0{ + qui replace item`j'=`=`m' + `kk'' if item`j'==`m' + local zzz=`j'+`nbitems' + *qui replace item`zzz'=`=`m' + `kk'' if item``=`j'+`nbitems'''==`m' + *di "WARNING SCENARIO `k': items `j': answers `m' and `=`m'+`kk'' merged" + local stop = 0 + } + else { + if `stop' != 0 { + qui replace item`j'= `nbm_`j'' if item`j'==`m' + local zzz=`j'+`nbitems' + *qui replace item`zzz'= `nbm_`j'' if item``=`j'+`nbitems'''==`m' + *di "WARNING SCENARIO `k': items `j': answers `m' and `=`m'+`kk'' merged" + local stop = 0 + } + } + } + } + } + } + } + qui levelsof item`j' + local val = r(levels) + local checker: word 1 of `val' + local checker2: word 2 of `val' + local checker3: word 3 of `val' + if (`checker'!=0) { + qui recode item`j' (`checker'=0) (`checker2'=1) (`checker3'=2) + } + else if (`checker2'!=1) { + qui recode item`j' (`checker2'=1) (`checker3'=2) + } + else if (`checker3'!=2) { + qui recode item`j' (`checker3'=2) + } + } + +qui valuesof comz +local val = r(values) +local checker: word 1 of `val' + +* replications avec 3 mod +if (`checker' == 1) { local difitems1=dif1 local difitems2=dif2 - if (`difitems1'<`difitems2') { - local difitemsmin `difitems1' - local difitemsmax `difitems2' +forvalues i=1/`nbitems' { + if (`i'==`difitems1') { + local constrnt = "constraint 1 2*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([2.item`i']_cons-([2.item`i']_cons+[2.item`i'] tt))" + } + if (`i'==`difitems2') { + local constrnt = "constraint 2 2*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([2.item`i']_cons-([2.item`i']_cons+[2.item`i'] tt))" + } +} +local mod "gsem " +forvalues i=1/`nbitems' { + if (`i'==`difitems1') { + local mod = "`mod'"+"(1.item`i'<-THETA@1 tt)(2.item`i'<-THETA@2 tt)" } else { - local difitemsmin `difitems2' - local difitemsmax `difitems1' + local mod = "`mod'"+"(1.item`i'<-THETA@1)(2.item`i'<-THETA@2)" } - forvalues i=1/`nbitems' { - if (`i'==`difitemsmin') { - local constrnt = "constraint 1 2*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([2.item`i']_cons-([2.item`i']_cons+[2.item`i'] tt))" - local constrnt2 = "constraint 2 3*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([3.item`i']_cons-([3.item`i']_cons+[3.item`i'] tt))" - } +} +local mod = "`mod'" + "(THETA<-tt), mlogit tol(0.01) iterate(500) latent(THETA) nocapslatent constraint(1 2)" +qui `constrnt' +qui `mod' +mat V=r(table) +mat W=V[1..2,1...] +forvalues j=1/`nbitems' { + + mat outmat[`k',3*`j'-2] = W[1,colnumb(W,"1.item`j':_cons")] // items avant le premier dif + mat outmat[`k',3*`j'-1] = W[1,colnumb(W,"2.item`j':_cons")] // items avant le premier dif + mat outmat[`k',3*`j'] = W[1,colnumb(W,"3.item`j':_cons")] // items avant le premier dif +} + mat outmat[`k',3*`nbitems'+1] = W[1,colnumb(W,"1.item`difitems1':tt")] // coef de dif + mat outmat[`k',3*`nbitems'+2] = W[1,colnumb(W,"2.item`difitems1':tt")] // coef de dif + mat outmat[`k',3*`nbitems'+3] = W[1,colnumb(W,"3.item`difitems1':tt")] // coef de dif + mat outmat[`k',3*`nbitems'+4] = W[1,colnumb(W,"1.item`difitems2':tt")] // coef de dif + mat outmat[`k',3*`nbitems'+5] = W[1,colnumb(W,"2.item`difitems2':tt")] // coef de dif + mat outmat[`k',3*`nbitems'+6] = W[1,colnumb(W,"3.item`difitems2':tt")] // coef de dif + mat outmat[`k',3*`nbitems'+7] = W[1,colnumb(W,"THETA:tt")] // beta + mat outmat[`k',3*`nbitems'+8] = W[2,colnumb(W,"THETA:tt")] // se beta + mat outmat[`k',3*`nbitems'+9] = `difitems1' // numéro item de dif + mat outmat[`k',3*`nbitems'+10] = `difitems2' // numéro item de dif + restore +} + +* replications sans problèmes +else { + local difitems1=dif1 + local difitems1=dif2 +forvalues i=1/`nbitems' { + if (`i'==`difitems1') { + local constrnt = "constraint 1 2*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([2.item`i']_cons-([2.item`i']_cons+[2.item`i'] tt))" + local constrnt2 = "constraint 2 3*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([3.item`i']_cons-([3.item`i']_cons+[3.item`i'] tt))" } - forvalues i=1/`nbitems' { - if (`i'==`difitemsmax') { - local constrn3 = "constraint 3 2*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([2.item`i']_cons-([2.item`i']_cons+[2.item`i'] tt))" - local constrnt4 = "constraint 4 3*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([3.item`i']_cons-([3.item`i']_cons+[3.item`i'] tt))" - } + if (`i'==`difitems2') { + local constrnt3 = "constraint 3 2*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([2.item`i']_cons-([2.item`i']_cons+[2.item`i'] tt))" + local constrnt4 = "constraint 4 3*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([3.item`i']_cons-([3.item`i']_cons+[3.item`i'] tt))" } - local mod "gsem " - forvalues i=1/`nbitems' { - if (`i'==`difitemsmin' | `i'==`difitemsmax') { - local mod = "`mod'"+"(1.item`i'<-THETA@1 tt)(2.item`i'<-THETA@2 tt)(3.item`i'<-THETA@3 tt)" - } - else { - local mod = "`mod'"+"(1.item`i'<-THETA@1)(2.item`i'<-THETA@2)(3.item`i'<-THETA@3)" - } +} +local mod "gsem " +forvalues i=1/`nbitems' { + if (`i'==`difitems1') { + local mod = "`mod'"+"(1.item`i'<-THETA@1 tt)(2.item`i'<-THETA@2 tt)(3.item`i'<-THETA@3 tt)" } - local mod = "`mod'" + "(THETA<-tt), mlogit tol(0.01) iterate(500) latent(THETA) nocapslatent constraint(1 2 3 4)" - qui `constrnt' - qui `constrnt2' - qui `constrnt3' - qui `constrnt4' - qui `mod' - mat V=r(table) - mat W=V[1..2,1...] - forvalues j=1/`nbitems' { - if (`j'<`difitemsmin') { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+3] // items avant le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+5] // items avant le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+7] // items avant le premier dif - } - else if (`j'==`difitemsmin') { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+4] // items du le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+7] // items du le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+10] // items du le premier dif } - } - else if (`j'<`difitemsmax') { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+6] // items avant le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+8] // items avant le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+10] // items avant le premier dif - } - else if (`j'==`difitemsmax') { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+7] // items avant le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+10] // items avant le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+13] // items avant le premier dif - } else { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+9] // items avant le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+11] // items avant le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+13] // items avant le premier dif + local mod = "`mod'"+"(1.item`i'<-THETA@1)(2.item`i'<-THETA@2)(3.item`i'<-THETA@3)" } +} +local mod = "`mod'" + "(THETA<-tt), mlogit tol(0.01) iterate(500) latent(THETA) nocapslatent constraint(1 2 3 4)" +qui `constrnt' +qui `constrnt2' +qui `mod' +mat V=r(table) +mat W=V[1..2,1...] +forvalues j=1/`nbitems' { +if (`j'<`difitems1') { + mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+3] // items avant le premier dif + mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+5] // items avant le premier dif + mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+7] // items avant le premier dif + } +else if (`j'==`difitems1') { + mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+4] // items du le premier dif + mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+7] // items du le premier dif + mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+10] // items du le premier dif } + } +else { + mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+6] // items avant le premier dif + mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+8] // items avant le premier dif + mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+10] // items avant le premier dif } - mat outmat[`k',3*`nbitems'+1] = W[1,7*(`difitemsmin'-1)+2] // coef de dif - mat outmat[`k',3*`nbitems'+2] = W[1,7*(`difitemsmin'-1)+5] // coef de dif - mat outmat[`k',3*`nbitems'+3] = W[1,7*(`difitemsmin'-1)+8] // coef de dif - mat outmat[`k',3*`nbitems'+4] = W[1,7*(`difitemsmax'-1)+5] // coef de dif - mat outmat[`k',3*`nbitems'+5] = W[1,7*(`difitemsmax'-1)+8] // coef de dif - mat outmat[`k',3*`nbitems'+6] = W[1,7*(`difitemsmax'-1)+11] // coef de dif - mat outmat[`k',3*`nbitems'+7] = W[1,7*`nbitems'+7] // beta - mat outmat[`k',3*`nbitems'+8] = W[2,7*`nbitems'+7] // se beta - mat outmat[`k',3*`nbitems'+9] = `difitemsmin' // numéro item de dif - mat outmat[`k',3*`nbitems'+10] = `difitemsmax' // numéro item de dif - restore +} + mat outmat[`k',3*`nbitems'+1] = W[1,7*(`difitems1'-1)+2] // coef de dif + mat outmat[`k',3*`nbitems'+2] = W[1,7*(`difitems1'-1)+5] // coef de dif + mat outmat[`k',3*`nbitems'+3] = W[1,7*(`difitems1'-1)+8] // coef de dif + mat outmat[`k',3*`nbitems'+4] = W[1,7*(`difitems2'-1)+2] // coef de dif + mat outmat[`k',3*`nbitems'+5] = W[1,7*(`difitems2'-1)+5] // coef de dif + mat outmat[`k',3*`nbitems'+6] = W[1,7*(`difitems2'-1)+8] // coef de dif + mat outmat[`k',3*`nbitems'+7] = W[1,7*`nbitems'+4] // beta + mat outmat[`k',3*`nbitems'+8] = W[2,7*`nbitems'+4] // se beta + mat outmat[`k',3*`nbitems'+9] = `difitems1' // numéro item de dif + mat outmat[`k',3*`nbitems'+10] = `difitems2' // numéro item de dif + restore +} } putexcel set "`path_res'/out/10`scen'_`Nn'.xls", sheet("outmat") replace putexcel A1=matrix(outmat), colnames @@ -483,7 +826,8 @@ putexcel A1=matrix(outmat), colnames -** Scenario 11: J = 4 items / M = 2 modalities / DIF size 0.5 x2 + +************************************************** Scenario 11: J = 4 items / M = 2 modalities / DIF size 0.5 x2 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -557,7 +901,7 @@ putexcel A1=matrix(outmat), colnames -** Scenario 12: J = 4 items / M = 4 modalities / DIF size 0.5 x2 +************************************************** Scenario 12: J = 4 items / M = 4 modalities / DIF size 0.5 x2 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -672,12 +1016,12 @@ putexcel A1=matrix(outmat), colnames *========================== -****** Scenarios with DIF on 2 items +****************************************************** Scenarios with DIF on 2 items * Load pcm.ado adopath+"/home/corentin/Documents/These/Recherche/Simulations/Modules/" -** Scenario 13: J = 7 items / M = 2 modalities / DIF size 0.3 x2 +************************************************** Scenario 13: J = 7 items / M = 2 modalities / DIF size 0.3 x2 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -751,7 +1095,7 @@ adopath+"/home/corentin/Documents/These/Recherche/Simulations/Modules/" -** Scenario 14: J = 7 items / M = 4 modalities / DIF size 0.3 x2 +************************************************** Scenario 14: J = 7 items / M = 4 modalities / DIF size 0.3 x2 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -861,7 +1205,7 @@ putexcel A1=matrix(outmat), colnames -** Scenario 15: J = 7 items / M = 2 modalities / DIF size 0.5 x2 +************************************************** Scenario 15: J = 7 items / M = 2 modalities / DIF size 0.5 x2 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -935,7 +1279,7 @@ putexcel A1=matrix(outmat), colnames -** Scenario 16: J = 7 items / M = 4 modalities / DIF size 0.5 x2 +************************************************** Scenario 16: J = 7 items / M = 4 modalities / DIF size 0.5 x2 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -1043,12 +1387,12 @@ putexcel A1=matrix(outmat), colnames } } -***** Scenarios with DIF on 3 items +***************************************************** Scenarios with DIF on 3 items * Load pcm.ado adopath+"/home/corentin/Documents/These/Recherche/Simulations/Modules/" -** Scenario 17: J = 7 items / M = 2 modalities / DIF size 0.3 x3 +************************************************** Scenario 17: J = 7 items / M = 2 modalities / DIF size 0.3 x3 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -1139,7 +1483,7 @@ adopath+"/home/corentin/Documents/These/Recherche/Simulations/Modules/" -** Scenario 18: J = 7 items / M = 4 modalities / DIF size 0.3 x3 +************************************************** Scenario 18: J = 7 items / M = 4 modalities / DIF size 0.3 x3 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -1281,7 +1625,7 @@ putexcel A1=matrix(outmat), colnames } } -** Scenario 19: J = 7 items / M = 2 modalities / DIF size 0.5 x3 +************************************************** Scenario 19: J = 7 items / M = 2 modalities / DIF size 0.5 x3 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' @@ -1372,7 +1716,7 @@ putexcel A1=matrix(outmat), colnames -** Scenario 20: J = 7 items / M = 4 modalities / DIF size 0.5 x3 +************************************************** Scenario 20: J = 7 items / M = 4 modalities / DIF size 0.5 x3 local N = "50" foreach Nnn in `N' { local Nn = `Nnn' diff --git a/Scripts/Analysis/DIF/item_merger.do b/Scripts/Analysis/DIF/temp/item_merger.do similarity index 100% rename from Scripts/Analysis/DIF/item_merger.do rename to Scripts/Analysis/DIF/temp/item_merger.do diff --git a/Scripts/Analysis/DIF/temp.do b/Scripts/Analysis/DIF/temp/temp.do similarity index 100% rename from Scripts/Analysis/DIF/temp.do rename to Scripts/Analysis/DIF/temp/temp.do diff --git a/Scripts/Analysis/DIF/temp/temp_problem.do b/Scripts/Analysis/DIF/temp/temp_problem.do new file mode 100644 index 0000000..e69de29 diff --git a/Scripts/Analysis/DIF/temp_problem.do b/Scripts/Analysis/DIF/temp_problem.do deleted file mode 100644 index 23b60a5..0000000 --- a/Scripts/Analysis/DIF/temp_problem.do +++ /dev/null @@ -1,393 +0,0 @@ - -** Scenario 8: J = 4 items / M = 4 modalities / DIF size 0.5 -local N = "50" -foreach Nnn in `N' { -local Nn = `Nnn' -local path_data = "/home/corentin/Documents/These/Recherche/Simulations/Data/DIF/N`Nn'" -local path_res = "/home/corentin/Documents/These/Recherche/Simulations/Analysis/DIF/N`Nn'" -local scenarios = "A B C D E F G" -foreach scen in `scenarios' { -clear -import delim "`path_data'/scenario_8`scen'_`Nn'.csv", encoding(ISO-8859-2) case(preserve) clear -rename TT tt - -* Matrice de taille 1000 * 4 items + 1 DIF + beta + std beta + 1 dif -local nbitems = 4 -local nbdif = 1 -local taillemat = 3*`nbitems'+`nbdif'+3+2 -mat outmat = J(1000,`taillemat',.) -mat colnames outmat = "item1_1" "item1_2" "item1_3" "item2_1" "item2_2" "item2_3" "item3_1" "item3_2" "item3_3" "item4_1" "item4_2" "item4_3" "dif1_1" "dif1_2" "dif1_3" "beta" "se_beta" "dif_item_1" -di "Scenario 8`scen' / N=`Nnn'" -forvalues k=1/1000 { - if (mod(`k',100)==0) { - di "`k'/1000" - } - preserve - qui keep if replication==`k' - - - -* MERGE des modalités si non représentées - local com_z = 0 - qui gen comz = 0 - forvalues j = 1 / `nbitems' { - local recoda_`j' = 0 - qui tab item`j' if tt == 0, matrow(rect1_g0_`j') matcell(nbrt1_g0_`j') - local maxm`j'_t1_g0 = rect1_g0_`j'[r(r),1] - local minm`j'_t1_g0 = rect1_g0_`j'[1,1] - - qui tab item`j' if tt == 1, matrow(rect1_g1_`j') matcell(nbrt1_g1_`j') - local minm`j'_t1_g1 = rect1_g1_`j'[1,1] - local maxm`j'_t1_g1 = rect1_g1_`j'[r(r),1] - - local minm_`j' = min(`minm`j'_t1_g0',`minm`j'_t1_g1') - local maxm_`j' = max(`maxm`j'_t1_g0',`maxm`j'_t1_g1') - local nbm_`j' = `=`maxm_`j''-`minm_`j''' - - if `minm_`j'' != 0 & `com_z' == 0 { - local com_z = 1 - } - - forvalues m = 0/`=`nbm_`j''-1' { - qui count if item`j' == `m' & tt == 0 - local nb_rn1_g0 = r(N) - qui count if item`j' == `m' & tt == 1 - local nb_rn1_g1 = r(N) - local nb_rn = min(`nb_rn1_g0',`nb_rn1_g1') - if `nb_rn' == 0 { - qui replace comz = 1 - local recoda_`j' = 1 - if `m' == 0 | `m' < `minm`j'_t1_g0' | `m' < `minm`j'_t1_g1' { - local stop = 1 - forvalues k = 1/`=`nbm_`j''-`m'' { - qui count if item`j' == `=`m' + `k'' & tt == 0 - local v`k'1_0 = r(N) - qui count if item`j' == `=`m' + `k'' & tt == 1 - local v`k'1_1 = r(N) - if (`v`k'1_0' != 0 | `v`k'1_1' != 0) & `stop' != 0 { - qui replace item`j'= `=`m'+`k'' if item`j'==`m' - local zzz=`j'+`nbitems' - *qui replace item`zzz'=`=`m'+`k'' if item``=`j'+`nbitems'''==`m' - di "WARNING: items `j': answers `m' and `=`m'+`k'' merged" - local stop = 0 - } - } - } - else if `m' == `=`nbm_`j''-1' | `m' >= `maxm`j'_t1_g1' { - local stop = 1 - forvalues k = 1/`=`m'' { - qui count if item`j' == `=`m' - `k'' & tt == 0 - local v`k'1_0 = r(N) - qui count if item`j' == `=`m' - `k'' & tt == 1 - local v`k'1_1 = r(N) - if (`v`k'1_0' != 0 | `v`k'1_1' != 0) & `stop' != 0 { - qui replace item`j'= `=`m' - `k'' if item`j'==`m' - local zzz=`j'+`nbitems' - *qui replace item`zzz'= `=`m' - `k'' if item`zzz'==`m' - di "WARNING: items `j': answers `m' and `=`m'+`k'' merged" - local stop = 0 - } - } - } - else { - if runiform()>0.5{ - local stop = 1 - forvalues k = 1/`m' { - qui count if item`j' == `=`m' - `k'' & tt == 0 - local v`k'1_0 = r(N) - qui count if item`j' == `=`m' - `k'' & tt == 1 - local v`k'1_1 = r(N) - if (`v`k'1_0' != 0 | `v`k'1_1' != 0) & `stop' != 0 { - qui replace item`j'= `=`m'-`k'' if item`j'==`m' - local zzz=`j'+`nbitems' - *qui replace item`zzz'=`=`m'-`k'' if item``=`j'+`nbitems'''==`m' - di "WARNING: items `j': answers `m' and `=`m'+`k'' merged" - local stop = 0 - } - } - } - else { - local stop = 1 - forvalues k = 1/`=`nbm_`j''-`m'' { - qui count if item`j' == `=`m' + `k'' & tt == 0 - local v`k'1_0 = r(N) - qui count if item`j' == `=`m' + `k'' & tt == 1 - local v`k'1_1 = r(N) - if (`v`k'1_0' != 0 | `v`k'1_1' != 0) & `stop' != 0{ - qui replace item`j'=`=`m' + `k'' if item`j'==`m' - local zzz=`j'+`nbitems' - *qui replace item`zzz'=`=`m' + `k'' if item``=`j'+`nbitems'''==`m' - di "WARNING: items `j': answers `m' and `=`m'+`k'' merged" - local stop = 0 - } - else { - if `stop' != 0 { - qui replace item`j'= `nbm_`j'' if item`j'==`m' - local zzz=`j'+`nbitems' - *qui replace item`zzz'= `nbm_`j'' if item``=`j'+`nbitems'''==`m' - di "WARNING: items `j': answers `m' and `=`m'+`k'' merged" - local stop = 0 - } - } - } - } - } - } - } - qui levelsof item`j' - local val = r(levels) - local checker: word 1 of `val' - local checker2: word 2 of `val' - local checker3: word 3 of `val' - if (`checker'!=0) { - qui recode item`j' (`checker'=0) (`checker2'=1) (`checker3'=2) - } - else if (`checker2'!=1) { - qui recode item`j' (`checker2'=1) (`checker3'=2) - } - else if (`checker3'!=2) { - qui recode item`j' (`checker3'=2) - } - } - - - - - - - - - - - - - - - - - -qui valuesof comz -local val = r(values) -local checker: word 1 of `val' -* replications avec 3 mod -if (`checker' == 1) { -local difitems1=dif1 -forvalues i=1/`nbitems' { - if (`i'==`difitems1') { - local constrnt = "constraint 1 2*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([2.item`i']_cons-([2.item`i']_cons+[2.item`i'] tt))" - } -} -local mod "gsem " -forvalues i=1/`nbitems' { - if (`i'==`difitems1') { - local mod = "`mod'"+"(1.item`i'<-THETA@1 tt)(2.item`i'<-THETA@2 tt)" - } - else { - local mod = "`mod'"+"(1.item`i'<-THETA@1)(2.item`i'<-THETA@2)" - } -} -local mod = "`mod'" + "(THETA<-tt), mlogit tol(0.01) iterate(500) latent(THETA) nocapslatent constraint(1)" -qui `constrnt' -qui `mod' -mat V=r(table) -mat W=V[1..2,1...] -forvalues j=1/`nbitems' { -if (`j'<`difitems1') { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+3] // items avant le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+5] // items avant le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+7] // items avant le premier dif - } -else if (`j'==`difitems1') { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+4] // items du le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+7] // items du le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+10] // items du le premier dif } - } -else { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+6] // items avant le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+8] // items avant le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+10] // items avant le premier dif - } -} - mat outmat[`k',3*`nbitems'+1] = W[1,7*(`difitems1'-1)+2] // coef de dif - mat outmat[`k',3*`nbitems'+2] = W[1,7*(`difitems1'-1)+5] // coef de dif - mat outmat[`k',3*`nbitems'+3] = W[1,7*(`difitems1'-1)+8] // coef de dif - mat outmat[`k',3*`nbitems'+4] = W[1,7*`nbitems'+4] // beta - mat outmat[`k',3*`nbitems'+5] = W[2,7*`nbitems'+4] // se beta - mat outmat[`k',3*`nbitems'+6] = `difitems1' // numéro item de dif - restore -} - -* replications sans problèmes -else { -local difitems1=dif1 -forvalues i=1/`nbitems' { - if (`i'==`difitems1') { - local constrnt = "constraint 1 2*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([2.item`i']_cons-([2.item`i']_cons+[2.item`i'] tt))" - local constrnt2 = "constraint 2 3*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([3.item`i']_cons-([3.item`i']_cons+[3.item`i'] tt))" - } -} -local mod "gsem " -forvalues i=1/`nbitems' { - if (`i'==`difitems1') { - local mod = "`mod'"+"(1.item`i'<-THETA@1 tt)(2.item`i'<-THETA@2 tt)(3.item`i'<-THETA@3 tt)" - } - else { - local mod = "`mod'"+"(1.item`i'<-THETA@1)(2.item`i'<-THETA@2)(3.item`i'<-THETA@3)" - } -} -local mod = "`mod'" + "(THETA<-tt), mlogit tol(0.01) iterate(500) latent(THETA) nocapslatent constraint(1 2)" -qui `constrnt' -qui `constrnt2' -qui `mod' -mat V=r(table) -mat W=V[1..2,1...] -forvalues j=1/`nbitems' { -if (`j'<`difitems1') { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+3] // items avant le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+5] // items avant le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+7] // items avant le premier dif - } -else if (`j'==`difitems1') { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+4] // items du le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+7] // items du le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+10] // items du le premier dif } - } -else { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+6] // items avant le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+8] // items avant le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+10] // items avant le premier dif - } -} - mat outmat[`k',3*`nbitems'+1] = W[1,7*(`difitems1'-1)+2] // coef de dif - mat outmat[`k',3*`nbitems'+2] = W[1,7*(`difitems1'-1)+5] // coef de dif - mat outmat[`k',3*`nbitems'+3] = W[1,7*(`difitems1'-1)+8] // coef de dif - mat outmat[`k',3*`nbitems'+4] = W[1,7*`nbitems'+4] // beta - mat outmat[`k',3*`nbitems'+5] = W[2,7*`nbitems'+4] // se beta - mat outmat[`k',3*`nbitems'+6] = `difitems1' // numéro item de dif - restore -} -} -putexcel set "`path_res'/out/8`scen'_`Nn'.xls", sheet("outmat") replace -putexcel A1=matrix(outmat), colnames -} -} - - - - - - - - - - - - - -** Scenario 10: J = 4 items / M = 4 modalities / DIF size 0.3 x2 -local N = "50" -foreach Nnn in `N' { -local Nn = `Nnn' -local path_data = "/home/corentin/Documents/These/Recherche/Simulations/Data/DIF/N`Nn'" -local path_res = "/home/corentin/Documents/These/Recherche/Simulations/Analysis/DIF/N`Nn'" -local scenarios = "A B C D E F G" -foreach scen in `scenarios' { -clear -import delim "`path_data'/scenario_10`scen'_`Nn'.csv", encoding(ISO-8859-2) case(preserve) clear -rename TT tt - -* Matrice de taille 1000 * 4 items + 1 DIF + beta + std beta + 1 dif -local nbitems = 4 -local nbdif = 2 -local taillemat = 3*`nbitems'+6+2+`nbdif' -mat outmat = J(1000,`taillemat',.) -mat colnames outmat = "item1_1" "item1_2" "item1_3" "item2_1" "item2_2" "item2_3" "item3_1" "item3_2" "item3_3" "item4_1" "item4_2" "item4_3" "dif1_1" "dif1_2" "dif1_3" "dif2_1" "dif2_2" "dif2_3" "beta" "se_beta" "dif_item_1" "dif_item_2" -di "Scenario 10`scen' / N=`Nnn'" -forvalues k=1/1000 { - if (mod(`k',100)==0) { - di "`k'/1000" - } - preserve - qui keep if replication==`k' - local difitems1=dif1 - local difitems2=dif2 - if (`difitems1'<`difitems2') { - local difitemsmin `difitems1' - local difitemsmax `difitems2' - } - else { - local difitemsmin `difitems2' - local difitemsmax `difitems1' - } - forvalues i=1/`nbitems' { - if (`i'==`difitemsmin') { - local constrnt = "constraint 1 2*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([2.item`i']_cons-([2.item`i']_cons+[2.item`i'] tt))" - local constrnt2 = "constraint 2 3*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([3.item`i']_cons-([3.item`i']_cons+[3.item`i'] tt))" - } - } - forvalues i=1/`nbitems' { - if (`i'==`difitemsmax') { - local constrn3 = "constraint 3 2*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([2.item`i']_cons-([2.item`i']_cons+[2.item`i'] tt))" - local constrnt4 = "constraint 4 3*([1.item`i']_cons-([1.item`i']_cons+[1.item`i'] tt))=([3.item`i']_cons-([3.item`i']_cons+[3.item`i'] tt))" - } - } - local mod "gsem " - forvalues i=1/`nbitems' { - if (`i'==`difitemsmin' | `i'==`difitemsmax') { - local mod = "`mod'"+"(1.item`i'<-THETA@1 tt)(2.item`i'<-THETA@2 tt)(3.item`i'<-THETA@3 tt)" - } - else { - local mod = "`mod'"+"(1.item`i'<-THETA@1)(2.item`i'<-THETA@2)(3.item`i'<-THETA@3)" - } - } - local mod = "`mod'" + "(THETA<-tt), mlogit tol(0.01) iterate(500) latent(THETA) nocapslatent constraint(1 2 3 4)" - qui `constrnt' - qui `constrnt2' - qui `constrnt3' - qui `constrnt4' - qui `mod' - mat V=r(table) - mat W=V[1..2,1...] - forvalues j=1/`nbitems' { - if (`j'<`difitemsmin') { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+3] // items avant le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+5] // items avant le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+7] // items avant le premier dif - } - else if (`j'==`difitemsmin') { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+4] // items du le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+7] // items du le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+10] // items du le premier dif } - } - else if (`j'<`difitemsmax') { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+6] // items avant le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+8] // items avant le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+10] // items avant le premier dif - } - else if (`j'==`difitemsmax') { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+7] // items avant le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+10] // items avant le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+13] // items avant le premier dif - } - else { - mat outmat[`k',3*`j'-2] = W[1,7*(`j'-1)+9] // items avant le premier dif - mat outmat[`k',3*`j'-1] = W[1,7*(`j'-1)+11] // items avant le premier dif - mat outmat[`k',3*`j'] = W[1,7*(`j'-1)+13] // items avant le premier dif - } - } - mat outmat[`k',3*`nbitems'+1] = W[1,7*(`difitemsmin'-1)+2] // coef de dif - mat outmat[`k',3*`nbitems'+2] = W[1,7*(`difitemsmin'-1)+5] // coef de dif - mat outmat[`k',3*`nbitems'+3] = W[1,7*(`difitemsmin'-1)+8] // coef de dif - mat outmat[`k',3*`nbitems'+4] = W[1,7*(`difitemsmax'-1)+5] // coef de dif - mat outmat[`k',3*`nbitems'+5] = W[1,7*(`difitemsmax'-1)+8] // coef de dif - mat outmat[`k',3*`nbitems'+6] = W[1,7*(`difitemsmax'-1)+11] // coef de dif - mat outmat[`k',3*`nbitems'+7] = W[1,7*`nbitems'+7] // beta - mat outmat[`k',3*`nbitems'+8] = W[2,7*`nbitems'+7] // se beta - mat outmat[`k',3*`nbitems'+9] = `difitemsmin' // numéro item de dif - mat outmat[`k',3*`nbitems'+10] = `difitemsmax' // numéro item de dif - restore -} -putexcel set "`path_res'/out/10`scen'_`Nn'.xls", sheet("outmat") replace -putexcel A1=matrix(outmat), colnames -} -}