[Numpy-discussion] unique along axis?

[Ralf Gommers]

On Mon, Mar 12, 2012 at 8:04 PM, Neal Becker <ndbecker2 at gmail.com> wrote:

> I see unique does not take an axis arg.
>
> Suggested way to apply unique to each column of a 2d array?
>

A for-loop?

I'm guessing that there isn't an axis keyword because the number of unique
elements per column may not be the same, so you can't return an ndarray.

Ralf
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