Using the value of a variable to make and name new variables

[mkeintz]

You apparently want to read in raw data, with the desired variables for each record arranged in a column.

If the variables are arranged the same way for every observation (i.e. 5 lines of data for each obs), then use "line pointer controls" such as

•  /    which tells SAS to advance one data line
• #n   which tells SAS to advance to the n'th line in a group

So, crudely speaking, you could

data want;
   input x1   /   x2 x3   / x4;
run;

which tells SAS to expect 3 lines for each observations, with variable X1 on the first line,   X2 and X3 on the 2nd line, and X4 on the third line.

If this is not a correct interpretation of your problem, please show actual data as you have it, and actual data layout as you want it.