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Questions - data-cube

Xarray select dataarray according to an non-dimension coordinate

I want to select a Dataarray according to a criteria from a non-dimension coordinate. In the example below, I have my coords 'sat' which depend on the coord 'time', which is exactly what I need. When ...
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FarAway21

python

python-xarray

data-cube

Votes: 0

Answers: 1

Latest Answer

Finally, found the elegant enough answer in an old issue on xarray github: ds.sel(time = ds.sat == 'L30') Notes: ds = the DataArray (or Dataset) time : because my sat coordinate is linked to the time ...
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FarAway21

Xarray most efficient way to select variable and calculate its mean

I have a datacube of 3Gb opened with xarray that has 3 variables I'm interested in (v, vx, vy). The description is below with the code. I am interested only in one specific time window spanning betwee...
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Nihilum

python

optimization

mean

python-xarray

data-cube

Votes: 0

Answers: 1

Latest Answer

Try to avoid calling ".values" in between, because when you do that you are switching to np.array instead of xr.DataArray! import xarray as xr from dask.diagnostics import ProgressBar # Ope...
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Bert Coerver

Datacube Xarray sort and select arrays by time

I have a datacube opened with Xarray, which has several variables and a time vector ("mid_date", dimension 18206) in format datetime64. The variables are 18206 x 334 x 333. The issue is that...
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Nihilum

python

sorting

time

python-xarray

data-cube

Votes: 0

Answers: 1

Latest Answer

I see two possible solutions: 1/ selection based on the explicit list of dates you want import numpy as np from datetime import datetime da = datacube.vy filter_dates = filter(lambda d: (d >= np....
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Thrasy

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