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Re: Length of random index into list
On Apr 10, 2:19 am, Jean-Marc Gulliet <jeanmarc.gull... at gmail.com> wrote: > bitRAKE wrote: > > node = Length@Extract[s, indices] > > > How can this be done without using Extract? > > > Regards, > > bitRAKE > > Does > > node = Length /@ s > > fit your needs? > > Or > > node = Length[s[[indices]]] > > Regards, > Jean-Marc I thought node = Length[s[[indices]]] would work, but indices is a List and I don't know how to remove the head. My memory is fuzzy - it is like I remember reading how and I've looked and searched. Hm...the nested list is highly irregular and deeply nested - more like a vine than a tree.