Hoja de preparación de datos

proc cas; dataStep.runCode / code="data casuser.correlation_data; call streaminit(123); do i=1 to 1000; x = rand('normal'); y = 2*x + rand('normal', 0, 0.5); if x > 0 then c = 'Positive'; else c = 'Negative'; if rand('uniform') > 0.9 then call missing(x); output; end; run;"; run;