Hi there,

I have several datasets, each with the prediction error of different forecast models. I would like to merge the datasets in order to compare those errors and determine which predicts better. My problem is that I can´t merge them since the varname is the same in every dataset, so when I try to merge them Stata will automatically delete the merging dataset.

Any idea how can I merge them without having to change the varnames one by one, I am talking about 256 different datasets.

Thanks for your help beforehand!

Mario