window -a DATA;                           //
worksheet -s 1 45 500 175;         // selektiert Range 
mark -w1 DATA;                      // maskiert Range

DATA!wks.col(C1);
DATA!wks.insert(A);
worksheet -t $(1) 4;
col(A)=data(1,end-start+1,1);


window -n data FIT;  
FIT!wks.addcol(A);
worksheet -t $(1) 4;
FIT!wks.addcol(B);
col(A)=data(1,end-start+1,1);


for(j=1;j<=all;j+=1) {


nlsf.func$ = GaussAmp; 
//y0=0;
//xc=10;
//w=200;
//A=1;
nlsf.cleanupfitdata();
nlsf.fitdata$ = DATA_C$(j); 
nlsf.iterate(100); 
nlsf.funcx$ = DATA_A; //use as X dataset
nlsf.xmode = 2; 
nlsf.funccol$ = FIT_B;  //Store fitted y data
nlsf.makecurve(func);    //dataset generated for the fitted curve

DATA_C$(j)-=FIT_B;

};

window -cd;
delete DATA_A;