Hi, I have a dataset that contains, let's say, a text variable 'Operation' that contains operations on other columns (i.e. each observation is a different operation). For example, if the first obs. of 'Operation' is A+B, I would like then to add the columns A and B. If the second obs is 2*(C+D), then I want to add coluns C and D and multiply by two, and so on. So what I need is a datastep line that looks like this: result=('the content of 'Operation'). I tried a Call Execute but I can't make it work. Is there an easy solution to that problem? Thanks for your help, Nancy ... View more