DATA plasma2;
set plasma2;
z=0;
run;


proc transreg data=plasma2 maxiter=0 nozeroconstant detail
plots=(transformation(depedet)scatter);
model boxcox (RETPLASMA)=identity(z);
output out=BOXRETPLASMA;
run;

DATA plasma3;
SET plasma2;
RETDIETtran=RETDIET+121;
RUN;

proc transreg data=plasma3 maxiter=0 nozeroconstant detail
plots=(transformation(depedet)scatter);
model boxcox (RETDIETtran)=identity(z);
output out=BOXRETDIET;
run;