issues: 1335419018

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
1335419018 I_kwDOAMm_X85PmOCK 6907 Subplots w/ xarrays 23484003 closed 0     2 2022-08-11T03:16:43Z 2022-08-11T16:21:30Z 2022-08-11T16:21:30Z NONE      

What is your issue?

I tried to add an xarray 1D plot to a set of subplots in a figure, but I got an error:

``` import numpy as np import xarray as xr x1 = np.linspace(0,1,10) y1 = x1**2 da1 = xr.DataArray(y1,dims=("x"),coords={"x":x1})

x2 = np.linspace(0,1,10,endpoint=True) y2 = np.sqrt(x2) da2 = xr.DataArray(y2,dims=("x"),coords={"x":x2})

fg,(ax1,ax2) = plt.subplots(nrows=2,ncols=1)#,sharex=True) da1.plot(axes=ax1) da2.plot(axes=ax2) Error message: Traceback (most recent call last):

File "/var/folders/g6/42nl1yms1yq8tbmt3kpgm5b80000gp/T/ipykernel_2783/171456975.py", line 2, in <cell line: 2> da.plot(axes=ax1)

File "/Users/lucas.morton/opt/anaconda3/envs/work/lib/python3.9/site-packages/xarray/plot/plot.py", line 866, in call return plot(self._da, **kwargs)

File "/Users/lucas.morton/opt/anaconda3/envs/work/lib/python3.9/site-packages/xarray/plot/plot.py", line 332, in plot return plotfunc(darray, **kwargs)

File "/Users/lucas.morton/opt/anaconda3/envs/work/lib/python3.9/site-packages/xarray/plot/plot.py", line 440, in line primitive = ax.plot(xplt_val, yplt_val, args, *kwargs)

File "/Users/lucas.morton/opt/anaconda3/envs/work/lib/python3.9/site-packages/matplotlib/axes/_axes.py", line 1634, in plot self.add_line(line)

File "/Users/lucas.morton/opt/anaconda3/envs/work/lib/python3.9/site-packages/matplotlib/axes/_base.py", line 2279, in add_line self._set_artist_props(line)

File "/Users/lucas.morton/opt/anaconda3/envs/work/lib/python3.9/site-packages/matplotlib/axes/_base.py", line 1105, in _set_artist_props a.axes = self

File "/Users/lucas.morton/opt/anaconda3/envs/work/lib/python3.9/site-packages/matplotlib/artist.py", line 275, in axes raise ValueError("Can not reset the axes. You are probably "

ValueError: Can not reset the axes. You are probably trying to re-use an artist in more than one Axes which is not supported ```

I was hoping to get to the point where I could use the sharex=True keyword to show data from two different DataArrays with incongruous x-coordinates.

If I do this, I can make the figure, but I don't get the sharex=True possibility: fg = plt.figure() ax1 = fg.add_subplot(211) da1.plot(axes=ax1) ax2 = fg.add_subplot(212) da2.plot(axes=ax2)

Interestingly, I can get the same error message if I change the order of operations here:

``` fg = plt.figure() ax1 = fg.add_subplot(211) ax2 = fg.add_subplot(212)

da1.plot(axes=ax1) da2.plot(axes=ax2) ```

Any idea what might be going on here?

 
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