EViews.com

Hi, i'm new to eviews and i need some help. My teacher asked me to create subgroups to be able to do a wilcoxon test, but I've trying to create the subgroups by changing the sample, using the smpl command or changing in the "sample button", but when I try to create another subgroup, by changing the sample again i loose the first one, because it changes to the new sample information.

Is there a better way to create subgroups or is there a way to save them, so the data doesn't change when I create a new one?

Thank you for your help!

You can create sample objects that save the observations you want to work with. Then whenever you do some analysis you can select the sample you wish to use.