diff --git a/Modules/simirt.R b/Modules/simirt.R
new file mode 100644
index 0000000..e69de29
diff --git a/Modules/simirt.ado b/Modules/simirt.ado
index 6168d6f..491aca8 100644
--- a/Modules/simirt.ado
+++ b/Modules/simirt.ado
@@ -429,7 +429,7 @@ if "`pcm'"==""|"`rsm1'"!="" {
 				local tmp:word `j' of `rsm2'
 				matrix `pcm'[`i',`=1+`j'']=`pcm'[`i',1]+`tmp'
 			 }
-		  }		
+		  }
 	   }
 	}
 }
@@ -476,7 +476,7 @@ forvalues i=1/`nbitems' {
 }
 
 if "`covmatrix'"=="" {
-   tempname covmatrix 
+   tempname covmatrix
    if `nbcov'==1 {
        matrix `covmatrix'=(`cov')
    }
@@ -514,7 +514,7 @@ local names
 forvalues d=1/`dim' {
   qui gen x`d'=invnorm(uniform())
   qui compress
-  local names `names' lt`d'
+  local names `names' lt`d' /*En R: names <- c(names,paste('lt',d)) */
 }
 
 matrix Chol=cholesky(corr(`covmatrix'))
@@ -530,8 +530,8 @@ forvalues d=1/`dim' {
    qui replace lt`d'=lt`d'*sqrt(`covmatrix'[`d',`d'])+`matmu'[`d',1]
    qui compress
 }
-qui replace lt1=_n-`nbobs' if `graphobs' 
-qui replace lt1=(lt1-1001)/1000*4*sqrt(`covmatrix'[1,1])+`matmu'[1,1] if `graphobs' 
+qui replace lt1=_n-`nbobs' if `graphobs'
+qui replace lt1=(lt1-1001)/1000*4*sqrt(`covmatrix'[1,1])+`matmu'[1,1] if `graphobs'
 
 if `dim'==1&`group'!=0 {
    if "`random'"=="" {
@@ -674,14 +674,14 @@ if "`draw'"!=""|"`icc'"!=""|"`drawall'"!="" {
          else {
             local title3="`title'"
          }
-         graph twoway (line `icc`i'' lt1) if `graphobs', ylabel(0(1)`nbmodas') legend(off) ytitle("Expected response") title("`title3'") name(iccitem`i',replace) 
+         graph twoway (line `icc`i'' lt1) if `graphobs', ylabel(0(1)`nbmodas') legend(off) ytitle("Expected response") title("`title3'") name(iccitem`i',replace)
 		 local hicc `hicc' (line `icc`i'' lt1)
 		 label variable `icc`i'' "Item `i'"
 	  }
-      graph twoway `hicc' if `graphobs', ylabel(0(1)`nbmodas') legend(on) ytitle("Expected response") title("Item Characteristic Curves") name(icc,replace) 
+      graph twoway `hicc' if `graphobs', ylabel(0(1)`nbmodas') legend(on) ytitle("Expected response") title("Item Characteristic Curves") name(icc,replace)
    }
 }
-qui drop if `graphobs' 
+qui drop if `graphobs'
 
 
 /********************************************************************************