Rick,
I never realized that PROC FREQ could calculated pearson correlation and its CL .
And I compared it with PROC CORR 's pearson correlation CL .
Learn it from your blog:
https://blogs.sas.com/content/iml/2017/09/20/fishers-transformation-correlation.html

proc freq data=sashelp.heart;
tables weight * height / PLCORR CL norow nocol nopercent;
run;

proc corr data=sashelp.heart pearson fisher(biasadj=no);
var weight height;
run;

But get different result. Which CL is the right CL ?
PROC FREQ is [ 0.4948 , 0.5400 ]
PROC CORR is [ 0.497194 , 0.537016 ]