I am working on 'Interim Data monitoring' in clinical trials,and found that IML is a powerful tool to compute the stopping boundaries with the function SEQ and SEQSCALE,but I can not understand the elements of these function.
I used to refer to the 'SAS/IML user's guide',but there are no examples,and I can not catch the meaning.
So,I want to know if there are some material related to the functions,ideally containing some examples.
Thank you very much! :-)