Moorits Muru (May 03 2022 at 08:31): Moorits Muru (May 03 2022 at 08:31):I have a matrix d where the first three columns are coordinates followed by some other data. I want to make a coordinate cut, so in essence, filter by rows by some function f.
I hoped I could do filter(f, eachrow(d)), but it seems filter doesn't like generators. My current solution is to use mapslices to create a mask and use the mask on data. But, if possible, I would like to filter without making a mask.
Gunnar Farnebäck (May 03 2022 at 08:55):Would a filtered comprehension work for you?
[r for r in eachrow(d) if f(r)]
Which, IIRC, lowers to something involving Iterators.filter which works on generators.
Last updated: Nov 27 2025 at 04:44 UTC