Thank you for response. I got your point. Finally, I used Proc Severity to figure out which distribution fits to my data series. Proc severity provides the parameters for each distribution besides goodness of fit test. So, I used those parameters values for the fitted distribution and then, I calculate the associated CDF for each value of precipitation in each month. The following you can find the code that I used: In this example, I calculate of the CDF of lognormal with mu and sigma values estimated by Proc Severity. Data DATA; infile 'C:\Precipitation.dat' delimiter='09'x; input date $ P; y=cdf('LOGNORMAL',P,3.33684,1.23572); run; Proc print; run; Thanks Reeza and BallardW
... View more
