Hello,
I want to obtain x as a two column array, the first column must be a vector of values one and the other xi is a variable of decimal values that comes from the database imported from R, au_obsbipoiss. I am doing it in the following way
proc iml;
reset noname;
use distrib.au_obsbipoiss;
read all var{y_1} into y1;
read all var{y_2} into y2;
read all var{xmat} into xi;
r = nrow(y1);
x= J(r, 1, 1)||xi;
However, SAS takes xi as a character variable so I can not get x.
What I can do? please help me.