[ncl-talk] Fill Values in NCL and Python

[Karin Meier-Fleischer]

Hi Barry,

the following two Python examples demonstrate how to set values in a 
NumPy and an Xarray array to NaN using a condition.

arr = np.arange(0., 10.)
arr[arr >= 7.] = np.nan
print(arr)

-----> output: [ 0. 1. 2. 3. 4. 5. 6. nan nan nan]

xarr = xr.DataArray(np.arange(10))
xarr = xarr.where(xarr < 7, np.nan)
print(xarr.values)

-----> output: [ 0. 1. 2. 3. 4. 5. 6. nan nan nan]

Regards,
Karin

Am 28.02.24 um 15:10 schrieb Barry Lynn via ncl-talk:
> Hi:
>
> I know how to change an array value to fillvalue in NCL using a where 
> statement.
>
> How do I do the same in python, please?
>
> Barry
> -- 
>
> Barry H. Lynn, Ph.D
> Senior Scientist, Lecturer,
> The Institute of Earth Sciences,
> The Hebrew University of Jerusalem,
> Givat Ram, Jerusalem 91904, Israel
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>
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