search

Deech08 / whampy

Python Package to Interact with, Visualize, and Analyze the Wisconsin H-Alpha Mapper - Sky Survey
BSD 3-Clause "New" or "Revised" License
8 stars 1 forks source link

RuntimeWarning in QuickStart instructions #5

Closed HeloiseS closed 4 years ago

HeloiseS commented 4 years ago

Issue

Tried the quick start instructions after downloadig v0.2.0a1 and I get the following:

>>> moment_0, err_0 = survey.moment(order = 0, return_sigma = True)
/home/fste075/anaconda3/envs/whampy_test/lib/python3.7/site-packages/astropy/table/column.py:991: RuntimeWarning: invalid value encountered in less result = getattr(super(), op)(other)

The other two moments and errors calculate fine with no error :)

This issue is part of the current JOSS-review of whampy ( #1940 )

Deech08 commented 4 years ago

I believe this happens because there are some nan values in the data. It should still compute fine, but just display the warning. Does the end result still give you actual numbers for moment_0 and err_0, or is there an actual error beyond the warning that stops it from executing?

HeloiseS commented 4 years ago

Ace, are these the values I should get?

>>> moment_0
<Quantity [0.94620246, 1.1443384 , 1.2161877 , ..., 6.932495  , 7.1546907 ,
           7.571975  ] R>
>>> err_0
<Quantity [0.23768413, 0.25891924, 0.27316484, ..., 0.3584447 , 0.2074711 ,
           0.38070837] R>
Deech08 commented 4 years ago

Yes, those are the expected results!