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*! version 1.0.6 SRH 1 June 2003
program define gllasim
version 6.0
if "`e(cmd)'" ~= "gllamm" {
di in red "gllamm was not the last command"
exit 301
}
*syntax anything(name=pref id="prefix for variable(s)") [if] [in]
syntax newvarname [if] [in] /*
*/ [,Y U LInpred FAC FSAMPLE MU OUTcome(int -99) ABove(numlist integer) /*
*/ noOFFset ADOONLY FRom(string) US(string)]
local nopt = ("`u'"!="") + ("`linpred'"!="") + ("`fac'"!="") + ("`mu'"!="")
local pref `varlist'
if `nopt'>1 {
disp in re "only one of these option allowed: u, fac, linpred or mu"
exit 198
}
local tplv = e(tplv)
local tprf = e(tprf)
if `nopt'==0 {
local y "y"
}
if "`e(weight)'"~=""&"`y'"~=""{
disp in re "weight option used in gllamm: It doesn't normally make sense to simulate responses for collapsed data"
}
if `tplv' < 2{
if "`u'"~="" | "`fac'"~="" {
disp in re "u and fac options not valid for 1 level model"
exit 198
}
if "`linpred'"~="" & "`y'"=="" {
*disp in re "nothing to simulate. use gllapred, xb"
*exit 198
}
}
local vars
if "`y'"~=""{
local vars `pref'
local ysim `pref'
tempvar musim
local what=0
disp in gr "(simulated responses will be stored in `pref')"
/* check if gamma family used */
local found = 0
local fm "`e(famil)'"
local num: word count `fm'
local k = 1
while `k' < `num'{
local ll: word `k' of `fm'
if "`ll'" == "gamma"{
local found = 1
}
local k = `k' + 1
}
if `found' == 1{
disp in re "cannot simulate from gamma yet"
exit 198
}
}
if "`u'"~=""|"`fac'"~=""{
local i = 1
while `i' < `tprf'{
local vars `vars' `pref'p`i'
local i = `i' + 1
}
disp in gr "(simulated scores will be stored in `vars')"
}
if "`linpred'"~=""{
local vars `vars' `pref'p
local lpred `pref'p
disp in gr "(linear predictor will be stored in `pref'p)"
}
if "`mu'"~=""{
local vars `vars' `pref'p
local musim `pref'p
tempvar lpred
tempvar ysim
if "`y'"~=""{
local what = 1
}
else{
local what = 5
}
disp in gr "(mu will be stored in `pref'p)"
}
else if "`y'"~=""{
tempvar lpred
}
if "`offset'"~=""{
if "`linpred'"==""&"`mu'"==""{
disp in re "nooffset option only allowed with linpred or mu option"
exit 198
}
}
if "`us'"~=""& "`u'"~=""{
disp in re "u option does not make sense with us() option"
exit 198
}
* disp in re "setting macros"
/* check if variables already exist */
confirm new var `vars'
/* restrict to estimation sample */
tempvar idno
gen int `idno' = _n
preserve
if "`fsample'"==""{
qui keep if e(sample)
}
/* interpret if and in */
marksample touse, novarlist
qui count if `touse'
if _result(1) <= 1 {
di in red "insufficient observations"
exit 2001
}
qui keep if `touse'
tempfile file
/* set all global macros needed by gllam_ll */
setmacs 0
if "`adoonly'"!="" {
global HG_noC=1
global HG_noC1=1
}
*disp "HG_free = " $HG_free
tempname b
matrix `b'=e(b)
/* deal with from */
if "`from'"~=""{
capture qui matrix list `from'
local rc=_rc
if `rc'>1{
disp in red "`from' not a matrix"
exit 111
}
local ncol = colsof(`from')
local nrow = rowsof(`from')
local ncolb = colsof(`b')
if `ncolb'~=`ncol'{
disp in re "from matrix has `ncol' columns but should have `ncolb'"
exit 111
}
if `nrow'~=1{
disp in re "from matrix has more than one row"
exit 111
}
local coln: colnames(`b')
local cole: coleq(`b')
matrix `b' = `from'
matrix colnames `b' = `coln'
matrix coleq `b' = `cole'
}
/* deal with outcome() and above() */
if "`mu'"~=""&$HG_nolog>0{
if "`above'"==""{
disp in re "must specify above() option for ordinal responses"
exit 198
}
else{
matrix M_above = J(1,$HG_nolog,0)
local num: word count `above'
if `num'>1&`num'~=$HG_nolog{
disp in re "wrong length of numlist in above() option"
exit 198
}
local no = 1
local k = 1
while `no' <= $HG_nolog{
if `num'>1{
local k = `no'
}
local ab: word `k' of `above'
* disp in re "`no'th ordinal response, above = `ab'"
local n=M_nresp[1,`no']
local i = 1
local found = 0
while `i'<= `n'&`found'==0{
if M_resp[`i',`no']==`ab'{
local found=`i'
matrix M_above[1,`no']=`i'
}
local i = `i' + 1
}
if `found'==0{
disp in re "`ab' not a category for `no'th ordinal response"
exit 198
}
else if `found' == `n'{
disp in re "`ab' is highest category for `no'th ordinal response"
exit 198
}
local no = `no' + 1
}
}
* noi matrix list M_above
}
if "`mu'"~=""&$HG_mlog>0{
if `outcome'==-99&$HG_exp==0{
disp in re "must specify outcome() option for nominal responses unless data in expanded form"
exit 198
}
if $HG_exp==0{
local n=rowsof(M_respm)
local found = 0
local i = 1
while `i'<= `n'&`found'==0{
if M_respm[`i',1]==`outcome'{
local found=`i'
}
local i = `i' + 1
}
if `found'==0{
disp in re "`outcome not a category of the nominal response'"
exit 198
}
global HG_outc=`outcome'
}
}
/* run remcor */
/* set up names for HG_xb`i' */
local i = 1
while (`i' <= $HG_tpff){
tempname junk
global HG_xb`i' "`junk'"
local i = `i' + 1
}
/* set up names for HG_s`i' */
local i = 1
while (`i'<=$HG_tprf){
tempname junk
global HG_s`i' "`junk'"
local i = `i' + 1
}
if $HG_free{ /* names for HG_p`lev'`k' */
local lev = 2
while `lev'<=$HG_tplv{
local npar = M_np[1,`lev']
if `npar'>0{
local k = 1
while `k'<=M_nip[1, `lev']{
* disp in re "creating HG_p`lev'`k'"
tempname junk
global HG_p`lev'`k' "`junk'"
local k = `k' + 1
}
}
local lev = `lev' + 1
}
}
qui remcor "`b'" `us'
/* sort out level 1 clus variable */
local clus `e(clus)'
global HG_clus `clus'
tempvar id
if $HG_exp~=1&$HG_comp==0{
gen int `id'=_n
tokenize "`clus'"
local l= $HG_tplv
local `l' "`id'"
global HG_clus "`*'"
if $HG_tplv>1{
global HG_clus "`*'"
}
else{
global HG_clus "`1'"
}
}
* disp "HG_clus: $HG_clus"
/* deal sith us */
if "`us'"~="" {
local j = 1
while `j'<$HG_tprf{
capture confirm variable `us'`j'
if _rc~=0{
disp in re "variable `us'`j' not found"
exit 111
}
else{
global HG_U`j' "`us'`j'"
}
local j = `j' + 1
}
}
else {
if $HG_free{
/* simulate discrete latent variables HG_U`rf'*/
tempvar f r cum1 cum2
qui gen double `r' = 0
qui gen byte `f' = 0
gen double `cum2' = 0
gen double `cum1' = 0
local sortlst $HG_clus
local lev = 2
local rf = 1
local k = $HG_tplv
while `lev'<=$HG_tplv{
/* sortlist etc. */
tokenize "`sortlst'"
local `k' " "
local sortlst "`*'"
sort $HG_clus
qui by `sortlst': replace `f' = _n==1
qui replace `r' = cond(`f'==1,uniform(),.)
/* define variables HG_V */
local rf = M_nrfc[2,`lev'-1]
while `rf'<M_nrfc[2,`lev']{
tempname junk
global HG_U`rf' "`junk'"
qui gen double ${HG_U`rf'} = 0
local rf = `rf' + 1
}
/* assign values */
local i=M_nrfc[1,`lev'-1] + 1
local np = M_nip[2,`i']
local npar = M_np[1,`lev']
local n = M_nip[1,`lev']
local probs "M_zps`np'"
*disp "probabilities for level " `lev' " in `probs'"
*local n = colsof(`probs')
local i = 1
while `i'<=`n'{
qui replace `cum1' = `cum2'
if `npar'>0{
qui replace `cum2' = `cum2' + exp(${HG_p`lev'`i'})
}
else{
qui replace `cum2' = `cum2' + exp(`probs'[1,`i'])
}
local rf = M_nrfc[2,`lev'-1]
while `rf'<M_nrfc[2,`lev']{
local npt = M_nip[2,`rf'+1]
local zlocs "M_zlc`npt'"
* disp in re "replace ${HG_U`rf'} = `zlocs'[1,`i'] if r<=" `cum2' "&r> " `cum1'
qui replace ${HG_U`rf'} = `zlocs'[1,`i'] if `r'<=`cum2'&`r'>`cum1'
local rf = `rf' + 1
}
local i = `i' + 1
}
/* set all values in same cluster equal to prediction */
sort $HG_clus
local rf = M_nrfc[2,`lev'-1]
while `rf'<M_nrfc[2,`lev']{
qui by `sortlst': replace ${HG_U`rf'} = sum( ${HG_U`rf'} )
local rf = `rf' + 1
}
local lev = `lev' + 1
local k = `k' - 1
}
if "`u'"~=""|"`fac'"~=""{
local rf = 1
while `rf'<$HG_tprf{
qui gen double `pref'p`rf'=${HG_U`rf'}
local rf = `rf' + 1
}
}
}
else{
/* simulate uncorrelated iid standard normal latent variables HG_U`rf'*/
tempvar f
qui gen byte `f' = 0
local sortlst $HG_clus
local lev = 2
local rf = 1
local k = $HG_tplv
while `lev'<=$HG_tplv{
*disp "sort `sortlst'"
tokenize "`sortlst'"
local `k' " "
local sortlst "`*'"
sort $HG_clus
qui by `sortlst': replace `f' = _n==1
while `rf'<M_nrfc[2,`lev']{
tempname junk
global HG_U`rf' "`junk'"
gen double ${HG_U`rf'} = cond(`f'==1,invnorm(uniform()),0)
qui by `sortlst': replace ${HG_U`rf'} = sum( ${HG_U`rf'} )
*noi summ ${HG_U`rf'} if `f' == 1
local rf = `rf' + 1
}
local lev = `lev' + 1
local k = `k' - 1
}
/* multiply by Cholesky */
if "`u'"~=""|"`fac'"~=""{
* noi matrix list CHmat
local lv = 2
local rf = 1
while `lv'<=$HG_tplv{
local minrf = `rf'
local maxrf = M_nrfc[2,`lv']
while `rf'<`maxrf'{
qui gen double `pref'p`rf'=0
local rf2 = `minrf'
while `rf2'<=`rf'{ /* lower diagonal matrix */
* disp in re "`pref'p`rf' = `pref'p`rf' + CHmat[`rf',`rf2']*HG_U`rf2'"
qui replace `pref'p`rf'=`pref'p`rf'+CHmat[`rf',`rf2']*${HG_U`rf2'}
local rf2 = `rf2' + 1
}
local rf = `rf' + 1
}
local lv = `lv' + 1
}
}
}
}
if "`fac'"~=""{
/* regressions for factors */
if $HG_bmat{
* assumes that nocor option was used
local rf = $HG_tprf - 2
while `rf'>0{
local rf2 = `rf'+1
while `rf2'<=$HG_tprf - 1 { /* upper diagonal matrix */
*disp in re "`pref'p`rf'=`pref'p`rf'+Bmat[`rf',`rf2']*`pref'p`rf2'"
qui replace `pref'p`rf'=`pref'p`rf'+Bmat[`rf',`rf2']*`pref'p`rf2'
local rf2 = `rf2' + 1
}
local rf = `rf' -1
}
}
*disp "dealing with geqs"
tempname junk s1
local i = 1
while `i'<=$HG_ngeqs{
local k = M_ngeqs[1,`i']
local n = M_ngeqs[2,`i']
local nxt = M_ngeqs[3,`i']
*disp "random effect `k'-1 has `n' covariates"
local nxt2 = `nxt'+`n'-1
matrix `s1' = `b'[1,`nxt'..`nxt2']
*matrix list `s1'
local nxt = `nxt2' + 1
capture drop `junk'
matrix score double `junk' = `s1'
local rf = `k' - 1
replace `pref'p`rf' = `pref'p`rf' + `junk'
local i = `i' + 1
}
}
if "`y'"~=""|"`linpred'"~=""|"`mu'"~=""{
qui gen double `lpred' = $HG_xb1
local i = 2
while (`i' <= $HG_tprf){
local im = `i' - 1
qui replace `lpred' = `lpred' + ${HG_U`im'} * ${HG_s`i'}
local i = `i' + 1
}
if "`offset'"~=""&"$HG_off"~=""{
qui replace `lpred' = `lpred' - $HG_off
}
}
/* simulate y */
if "`y'"~=""|"`mu'"~=""{
/* sort out denom */
local denom "`e(denom)'"
if "`denom'"~=""{
capture confirm variable `denom'
if _rc>0{
tempvar den
qui gen `den'=1
global HG_denom "`den'"
}
else{
global HG_denom `denom'
}
}
/* sort out HG_ind */
capture confirm variable $HG_ind
if _rc>0{
tempname junk
global HG_ind "`junk'"
gen $HG_ind=1
}
/* sort out HG_lvolo */
if $HG_nolog>0{
tempname junk
global HG_lvolo "`junk'"
qui gen $HG_lvolo = 0
local no = 1
if "$HG_lv"==""{
local olog = M_olog[1,`no']
qui replace $HG_lvolo = 1
}
else{
while `no'<=$HG_nolog{
local olog = M_olog[1,`no']
qui replace $HG_lvolo = 1 if $HG_lv == `olog'
local no = `no' + 1
}
}
}
/* call gllas_yu */
qui gen double `ysim' = .
qui gen double `musim' = 0
* disp in re "musim = `musim'"
sort $HG_clus
gllas_yu `ysim' `lpred' `musim' `what'
}
/* delete macros */
delmacs
qui keep `idno' `vars'
qui sort `idno'
qui save "`file'", replace
restore
sort `idno'
qui merge `idno' using "`file'"
qui drop _merge
end
program define setmacs
version 6.0
args what
/* sort out depvar */
local depv "`e(depvar)'"
global ML_y1 "`depv'"
/* link and family-related macros */
global HG_famil "`e(famil)'"
global HG_link "`e(link)'"
global HG_linko "`e(linko)'"
global HG_nolog = `e(nolog)'
global HG_ethr = `e(ethr)'
global HG_mlog = `e(mlog)'
global HG_smlog = `e(smlog)'
global HG_oth = `e(oth)'
global HG_lv "`e(lv)'"
global HG_fv "`e(fv)'"
capture matrix M_resp=e(mresp)
capture matrix M_respm=e(mrespm)
capture matrix M_frld=e(frld)
capture matrix M_olog=e(olog)
capture matrix M_oth=e(moth)
global HG_exp = e(exp)
global HG_expf = e(expf)
global HG_ind = "`e(ind)'"
global HG_lev1 = e(lev1)
global HG_comp = e(comp)
capture local coall "`e(coall)'"
if $HG_comp~=0{
local i = 1
while `i'<=$HG_comp{
local k: word `i' of `coall'
global HG_co`i' `k'
local i = `i' + 1
}
}
/* set all other global macros */
global HG_nats = `e(nats)'
global HG_noC = `e(noC)'
global HG_noC1 = `e(noC1)'
global HG_adapt = `e(adapt)'
global HG_tplv = e(tplv)
global HG_tpff = `e(tpff)'
global HG_tpi = `e(tpi)'
global HG_tprf = e(tprf)
local tprf = $HG_tprf
global HG_free = e(free)
global HG_mult = e(mult)
global HG_lzpr lzprobg
global HG_zip zipg
if $HG_mult{
global HG_lzpr lzprobm
}
else if $HG_free{
global HG_lzpr lzprobf
global HG_zip zipf
matrix M_np=e(mnp)
}
global HG_cip = e(cip)
global which = 9
global HG_off "`e(offset)'"
global HG_error = 0
global HG_cor = `e(cor)'
global HG_bmat = e(bmat)
global HG_const = 0
global HG_ngeqs = e(ngeqs)
global HG_inter = e(inter)
global HG_dots = 0
global HG_init = e(init)
matrix M_nbrf = e(nbrf)
matrix M_nrfc = e(nrfc)
matrix M_ip = J(1,$HG_tprf+2,1)
matrix M_nffc = e(nffc)
if $HG_tprf<2{ local tprf = 2}
matrix M_znow =J(1,`tprf'-1,1)
matrix M_nip = e(nip)
capture matrix M_ngeqs = e(mngeqs)
capture matrix M_b=e(mb)
*capture matrix M_chol = e(chol)
capture matrix CHmat = e(chol)
global HG_clus `e(clus)'
local lev = 2
while `lev'<=$HG_tplv{
local l = M_nrfc[1,`lev'-1] + 1 /* loop */
local k = M_nrfc[2,`lev'-1] + 1 /* r. eff. */
while `l'<=M_nrfc[1,`lev']&$HG_tplv>1{
while `k'<=M_nrfc[2,`lev']{
*disp "loop " `l' " random effect " `k'
local w = M_nip[2,`k']
/* same loc and prob as before? */
local found = 0
local ii=M_nrfc[2,1] + 1
while `ii'<`k'{
if `w'==M_nip[2,`ii']{
local found = 1
}
local ii = `ii'+1
}
capture matrix M_zps`w' =e(zps`w')
*matrix list M_zps`w'
if `what'==2{
if $HG_free {
if `k' == M_nrfc[1,`l']{
local nip = colsof(M_zps`w')
noi disp in gr "prior probabilities"
local j = 2
local zz=string(exp(M_zps`w'[1,1]),"%6.0gc")
if `nip'>1{
local mm "0`zz'"
}
else{
local mm "1"
}
while `j'<=`nip'{
local zz=string(exp(M_zps`w'[1,`j']),"%6.0gc")
local mm "`mm'" ", " "0`zz'"
local j = `j' + 1
}
disp in gr " prob: " in ye "`mm'"
disp " "
}
}
else if `found'==0{
noi disp in gr "probabilities for `w' quad. points"
noi matrix list M_zps`w'
disp " "
}
}
* disp "M_zlc`w'"
matrix M_zlc`w'=e(zlc`w')
*matrix list M_zlc`w'
if `what'==2{
if $HG_free{
noi disp in gr "locations for random effect " `w'-1
local mm=string(M_zlc`w'[1,1],"%6.0gc")
local j = 2
while `j'<= `nip'{
local zz=string(M_zlc`w'[1,`j'],"%6.0gc")
local mm "`mm'" ", " "`zz'"
local j = `j' + 1
}
disp in gr " loc: " in ye "`mm'"
disp " "
}
else if `found'==0{
noi disp in gr "locations for `w' quadrature points"
noi matrix list M_zlc`w'
disp " "
}
}
local k = `k' + 1
}
local l = `l' + 1
}
local lev = `lev' + 1
}
end
program define delmacs
version 6.0
/* deletes all global macros and matrices*/
tempname var
if "$HG_tplv"==""{
* macros already gone
exit
}
local nrfold = M_nrfc[2,1]
local lev = 2
while (`lev'<=$HG_tplv){
local i2 = M_nrfc[2,`lev']
local i1 = `nrfold'+1
local i = `i1'
local nrfold = M_nrfc[2,`lev']
while `i' <= `i2'{
local n = M_nip[2,`i']
if `i' <= M_nrfc[1,`lev']{
capture matrix drop M_zps`n'
}
capture matrix drop M_zlc`n'
local i = `i' + 1
}
local lev = `lev' + 1
}
if $HG_free==0&$HG_init==0{
*matrix drop M_chol
matrix drop CHmat
}
matrix drop M_nrfc
matrix drop M_nffc
matrix drop M_nbrf
matrix drop M_ip
capture matrix drop M_b
capture matrix drop M_resp
capture matrix drop M_respm
capture matrix drop M_frld
matrix drop M_nip
matrix drop M_znow
capture matrix drop M_ngeqs
capture matrix drop CHmat
/* globals defined in gllam_ll */
local i=1
while (`i'<=$HG_tpff){
global HG_xb`i'
local i= `i'+1
}
local i = 1
while (`i'<=$HG_tprf){
global HG_s`i'
global HG_U`i'
local i= `i'+1
}
local i = 1
while (`i'<=$HG_tplv){
global HG_wt`i'
local i = `i' + 1
}
global HG_nats
global HG_noC
global HG_noC1
global HG_adapt
global HG_fixe
global HG_lev1
global HG_bmat
global HG_tplv
global HG_tprf
global HG_tpi
global HG_tpff
global HG_clus
global HG_weigh
global which
global HG_gauss
global HG_free
global HG_famil
global HG_link
global HG_nolog
global HG_olog
global HG_mlog
global HG_smlog
global HG_oth
global HG_exp
global HG_expf
global HG_lv
global HG_fv
global HG_nump
global HG_eqs
global HG_obs
global HG_off
global HG_denom
global HG_cor
global HG_s1
global HG_init
global HG_ind
global HG_const
global HG_dots
global HG_inter
global HG_ngeqs
global HG_ethr
global HG_mult
global HG_lzpr
global HG_zip
global HG_cip
global HG_comp
capture macro drop HG_co*
end