Hello everybody,    is it possible to add boundaries in proc quantreg? Here's my code:   proc quantreg data=d algorithm=simplex outest=out ci=sparsity plots=none; model y= x1 x2 x3 / quantile=&q.; output out=out p=q res=r; run; I would like to add the following condiiton on y:      y>=0   Thanks a lot. ... View more

Hello SAS experts, I'm trying to move a script from Matlab to SAS IML. I did it and it works apparently, but I am getting different results with the functions:   Matlab   x = lsqcurvefit(f, p, GC, DD'); SAS: /* fun=f-dd and GC already set as parameter in fun.*/ CALL NLPLM (rc, xr, "fun", p, opt); Are they equivalent? According to the documentation it seems so. Thanks a lot. ... View more