Hello, I am fairly new to the use of syntaxes on GRETL. My task is to write a script that will dynamically count all variables in a tabular file (e.g csv) and conduct a non linear regression for each variable's dataset. I have figured out how to do it if there is only one variable, but am trying to do it if there are more than one variable laid out in a tabular format. I'ld appreciate any pointers that might help me on this issue. Thanks! Renju ********************************************************** Electronic Mail is not secure, may not be read every day, and should not be used for urgent or sensitive issues.