Created script for ROSALI analysis

main
Corentin Choisy 9 months ago
parent 72e60d2c04
commit 09245c57d0

@ -0,0 +1,198 @@
*=================================================================================================================================================
* Date : 2024-01-23
* Stata version : Stata 18 SE
*
* This program analyses simulated data accounting for DIF through a partial credit model
*
* ado-files needed : - pcm, rosali (version 5.5 October 25, 2023, available on gitea)
*
*
*================================================================================================================================================
adopath+"/home/corentin/Documents/These/Recherche/ROSALI-SIM/Modules/rosali_custom"
local N = "100 200 300"
local ss = "1 2 3 4 5 6 7 8 9 10 11 1 13 14 15 16 17 18 19 20"
foreach s in `ss' {
foreach Nnn in `N' {
local Nn = `Nnn'
local path_data = "/home/corentin/Documents/These/Recherche/Simulations/Data/DIF/N`Nn'"
if (`s'<=4) {
local path_data = "/home/corentin/Documents/These/Recherche/Simulations/Data/NoDIF/N`Nn'"
}
local path_res = "/home/corentin/Documents/These/Recherche/Simulations/Analysis/ROSALI-DIF/N`Nn'"
local scenarios = "A B C D E F G"
foreach scen in `scenarios' {
clear
import delim "`path_data'/scenario_`s'`scen'_`Nn'.csv", encoding(ISO-8859-2) case(preserve) clear
rename TT tt
if (`s'<=2) {
local nbitems=4
}
else if (`s'<=4) {
local nbitems=7
}
else if (`s'<=12) {
local nbitems=4
}
else {
local nbitems=7
}
if (mod(`s',2)==0) {
local nbmoda=3
}
else {
local nbmoda=1
}
if (`s'<=4) {
local nbdif=0
}
else if (`s'<=8) {
local nbdif=1
}
else if (`s'<=16) {
local nbdif=2
}
else {
local nbdif=3
}
* taillemat = Maximum J*M cases pour les items par et J*M cases pour les dif par + J cases pour les DIF detect + nbdif cases pour dif réel
local taillemat=2*`nbitems'*`nbmoda'+`nbitems'+`nbdif'+2
local colna=""
forvalues i=1/`nbitems' {
forvalues z=1/`nbmoda' {
local colna = "`colna'"+"item`i'_`z' "
local colna = "`colna'"+"dif_`i'_`z' "
}
}
forvalues i=1/`nbitems' {
local colna = "`colna'"+"dif_detect_`i' "
}
forvalues i=1/`nbdif' {
local colna = "`colna'"+"real_dif_`i' "
}
local colna = "`colna'" + "beta " + "se_beta"
mat outmat = J(1000,`taillemat',.)
mat colnames outmat= `colna'
di "Scenario `s'`scen' / N=`Nnn'"
forvalues k=1/1000 {
if (mod(`k',100)==0) {
di "`k'/1000"
}
preserve
qui keep if replication==`k'
* ROSALI
qui rosali_original item1-item`nbitems' item1-item`nbitems', group(tt)
qui mat resmat=r(difitems)
local nbitems2 = 2*`nbitems'
* Calculer le nbre d'items détectés
local nbdetect = 0
local stop = 0
forvalues jj=1/`nbitems' {
if (`stop'==0) {
mat testm=J(1,1,.)
if (resmat[1,`jj']==testm[1,1]) {
local stop = 1
local nbdetect = `jj'-1
}
}
}
* Stocker les items détectés +
* Définition des contraintes
local csrt=0
mat testm=J(1,1,0)
forvalues u=1/`nbdetect' {
local difitems`u'=resmat[1,`u']
local i=`difitems`u''
if (`nbmoda'==3 & resmat[1,`nbitems'+`i']!=testm[1,1]){
local constrnt`u' = "constraint `u' 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))"
qui `constrnt`u''
local v=`u'+100
local constrnt`u'_2 = "constraint `v' 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))"
qui `constrnt`u'_2'
}
}
* Définition du modèle
local mod "gsem "
local conformula = ""
forvalues i=1/`nbitems' {
local mod = "`mod'"+"(1.item`i'<-THETA@1)"
if (`nbmoda'==3) {
local mod = "`mod'"+"(2.item`i'<-THETA@2)(3.item`i'<-THETA@3)"
}
}
forvalues u=1/`nbdetect' {
local v=`difitems`u''
local mod = "`mod'"+"(1.item`v'<-THETA@1 tt)"
if (`nbmoda'==3) {
local mod = "`mod'"+"(2.item`v'<-THETA@2 tt)(3.item`v'<-THETA@3 tt)"
}
local w= 100+`u'
if (resmat[1,`nbitems'+`v']!=testm[1,1]) {
local conformula = "`conformula'" + "`u' " + "`w' "
}
}
if ("`conformula'" != "") {
local mod = "`mod'" + "(THETA<-tt), mlogit tol(0.01) iterate(500) latent(THETA) nocapslatent constraint(`conformula')"
}
else {
local mod = "`mod'" + "(THETA<-tt), mlogit tol(0.01) iterate(500) latent(THETA) nocapslatent"
}
*calcul du modèle
qui `mod'
mat V=r(table)
mat W=V[1..2,1...]
* compilation
forvalues j=1/`nbitems' {
forvalues z=1/`nbmoda' {
mat outmat[`k',colnumb(outmat,"item`j'_`z'")] = W[1,colnumb(W,"`z'.item`j':_cons")]
}
}
* compilation DIF
forvalues u=1/`nbdetect' {
local j=`difitems`u''
forvalues z=1/`nbmoda' {
mat outmat[`k',colnumb(outmat,"dif_`u'_`z'")] = W[1,colnumb(W,"`z'.item`j':tt")]
mat outmat[`k',colnumb(outmat,"dif_detect_`u'")] = `j'
}
}
* Stocker les items de DIF originaux
if (`nbdif' > 0) {
qui levelsof dif1
local ldif1 = r(levels)
local diff1: word 1 of `ldif1'
qui mat outmat[`k',colnumb(outmat,"real_dif_1")]=`diff1'
if (`nbdif' > 1) {
qui levelsof dif2
local ldif2 = r(levels)
local diff2: word 1 of `ldif2'
qui mat outmat[`k',colnumb(outmat,"real_dif_2")]=`diff2'
if (`nbdif' > 2) {
qui levelsof dif3
local ldif3 = r(levels)
local diff3: word 1 of `ldif3'
qui mat outmat[`k',colnumb(outmat,"real_dif_3")]=`diff3'
}
}
}
qui mat outmat[`k',colnumb(outmat,"beta")]=W[1,colnumb(W,"THETA:tt")]
qui mat outmat[`k',colnumb(outmat,"se_beta")]=W[2,colnumb(W,"THETA:tt")]
restore
}
putexcel set "`path_res'/`s'`scen'_`Nn'_original.xls", sheet("outmat") replace
putexcel A1=matrix(outmat), colnames
}
}
}

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