Just two quick questions.

1) Is it possible to use rangestat to do regressions by group, but not for a rolling window. I want to do one individual regression for each group (over the entire time window). Is it possible to run rangestat without

Code:
interval(keyvar low high)
2) If it is not possible to use rangestat, by group (without using a rolling window), is there another command that would allow me to do that and save the resulting residuals?