Boolean indexing and np.where

[joshmyersdean]

Are there any plans to implement these? Or are they already in place and I am just not getting the syntax right? Thank you!

[SanftMonster]

I am also finding this...I found that nd[true] works,however not for a variable value,for example nd[nd>0].
Could you please tell me if you have found a solution?thank you very much!

[Nucs]

Boolean indexing is now fully supported:

var arr = np.array(new[] { 1, 2, 3, 4, 5 });
var mask = arr > 3;
var result = arr[mask];  // Returns [4, 5] ✓

Note: np.where is still not implemented (tracked separately). Resolved via #600, #602, #603, #596.