Length of Subset

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Gabriel Perren

May 24, 2021, 10:57:16 AMMay 24
to Glue users
Hi! I'm looking for a simple way of knowing how many elements are in a given subset. Right now I do one of two things:

# Approach 1
1. Open up the terminal
2. Drag/drop the subset, name it 's1'
3. Type: `s1.to_mask().sum()`

# Approach 2
1. Export the subset to a file
2. Open file and check how many lines there are

Either one is a bit cumbersome when I have to repeat it for many files. I'd like to add a custom button for the viewer toolbar that would show me this information when pressed. Is this possible?

Thank you!

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