The DATA step uses ROUTED, the file containing PROC FREQ output, as
an input file and creates data set PROBTEST. This DATA step reads all records
in ROUTED but creates an observation only from a record that begins with
Chi-Squa
.
data probtest;
infile routed;
input word1 $ @;
if word1='Chi-Squa' then
do;
input df chisq prob;
keep chisq prob;
output;
end;
run;