Hi,

I'm stuck and in desperate need of help. This is what I'm trying to do.

1) I have 2 groups of compounds; A is active and B is the reference compound

2) I need to do a similarity evaluation on all of A against 1% of B but the 1% of B must be a diffferent set everytime it is being compared to an A i.e. Active 1 has a different 1% subset than Active 2.

So how do I create some kind of loop to generate a different 1% subset instead of having the same 1% for all of A?? What I have done so far is attached in the post. Any help would be great. Thanks!!