[Numpy-discussion] unique rows of array

josef.pktd at gmail.com josef.pktd at gmail.com
Tue Aug 18 01:03:35 EDT 2009


On Tue, Aug 18, 2009 at 12:59 AM, Maria Liukis<liukis at usc.edu> wrote:
>
> On Aug 17, 2009, at 9:51 PM, Charles R Harris wrote:
>
>
> On Mon, Aug 17, 2009 at 10:30 PM, Maria Liukis <liukis at usc.edu> wrote:
>>
>> Hello everybody,
>> While re-implementing some Matlab code in Python, I've run into a problem
>> of finding a NumPy function analogous to the Matlab's "unique(array,
>> 'rows')" to get unique rows of an array. Searching the web, I've found a
>> similar discussion from couple of years ago with an example:
>
> Just to be clear, do you mean finding all rows that only occur once in the
> array?
>
> Yes.

I interpreted your question as removing duplicates. It keeps rows that
occur more than once.
That's what my example is intended to do.

Josef

>
> <snip>
>
> Chuck
>
>
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