I greately appriciate your work. I am a graduate student and doing my thesis. I want to generalize a data set for given cov. structre. I used your macro programme you have posted. But it is coming from only normal distribution. I need to generalise from several distribution like cauchy, chisquared,lognormal, etc.... (for repeated data) I already bought your 1st sas iml book. I know your next book will give everything what I need. I called to the publisher to buy your book. But it will be released in next month and too late for me. Please can I buy that book soon? If you can give me some idea or macro programme It will be greate help for me. However, I need to buy your next book too. Please let me know.. Thank you very much...