API: NaT (arg)min/max behavior #14717
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eric-wieser
reviewed
Oct 15, 2019
| @@ -3103,6 +3104,12 @@ static int | |||
| return 0; | |||
| } | |||
| #endif | |||
| #if @isdatetime@ | |||
| if (mp == NPY_DATETIME_NAT) { | |||
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nit: four spaces here not three
eric-wieser
reviewed
Oct 15, 2019
| @@ -3122,6 +3129,13 @@ static int | |||
| } | |||
| } | |||
| #else | |||
| #if @isdatetime@ | |||
| if (*ip == NPY_DATETIME_NAT) { | |||
twsearle
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to twsearle/forest
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Feb 7, 2020
This is to avoid a change at version 1.18 (PR 14717), which is incompatible with our use of numpy.ma.argmax on a datetime64 array containing `NaT` (not a time) fill values. Specifically, `satellite.py: Locator.find_index` was returning indices at fill value locations. Numpy PR here: numpy/numpy#14717
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Fix #12797.
As discussed, we want argmin/argmax/min/max to return
NaTwhen it exists in the array.I modified some previous test cases that ignores
NaT. I also combined theDATETIME_argminfunction with more generalargminfunction. So that it is consistent withargmax.