Unexpected error - Regression Performance

[Former user]

Used sample data to create a fraction map (using regression unmixing) and a reference map from sample data. Used these as input to Regression Performance tool and received an exception: unexpected error. Attaching process log.

[Andreas Rabe]

Here is the full content of the attached file:

QGIS version: 3.16.8-Hannover
QGIS code revision: 8c50902e
Qt version: 5.15.2
GDAL version: 3.3.0
GEOS version: 3.9.1-CAPI-1.14.2
PROJ version: Rel. 8.0.1, March 5th, 2021
Processing algorithm…
Algorithm 'Regression Performance' starting…
Input parameters:
{ 'invertMask' : False, 'mask' : None, 'outReport' : 'C:/Users/User/AppData/Roaming/QGIS/QGIS3/profiles/default/processing/outputs/outReport.html', 'prediction' : 'E:/00_Masters/ARS/Hyperspectral Spectroscopy/output/fraction_mean_mean.bsq', 'reference' : 'E:/00_Masters/ARS/Hyperspectral Spectroscopy/output/validation/fraction_level1_reference.bsq' }

{'invertMask': False, 'mask': None, 'outReport': 'C:/Users/User/AppData/Roaming/QGIS/QGIS3/profiles/default/processing/outputs/outReport.html', 'prediction': 'fraction_mean_mean_bsq_8e115866_f910_4d51_8769_7f81273caef5', 'reference': 'fraction_level1_reference_bsq_323495e6_8640_4fb3_8f0e_bc27ff6d21c0'}
Traceback (most recent call last):
File "C:\Users/User/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\enmapboxplugin\enmapboxgeoalgorithms\provider.py", line 155, in processAlgorithm
result = self.processAlgorithm_()
File "C:\Users/User/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\enmapboxplugin\enmapboxgeoalgorithms\algorithms.py", line 1524, in processAlgorithm_
performance.report().saveHTML(filename=filename, open=True)
File "C:\Users/User/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\enmapboxplugin\hubflow\core.py", line 6028, in report
report.append(ReportPlot(fig)) # , caption=fittedLineText))
File "C:\Users/User/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\enmapboxplugin\hubflow\report.py", line 176, in __init__
array = fig2rgb_array()
File "C:\Users/User/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\enmapboxplugin\hubflow\report.py", line 170, in fig2rgb_array
figure.canvas.draw()
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\backends\backend_agg.py", line 407, in draw
self.figure.draw(self.renderer)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\artist.py", line 41, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\figure.py", line 1863, in draw
mimage._draw_list_compositing_images(
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\image.py", line 131, in _draw_list_compositing_images
a.draw(renderer)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\artist.py", line 41, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\cbook\deprecation.py", line 411, in wrapper
return func(*inner_args, **inner_kwargs)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\axes\_base.py", line 2747, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\image.py", line 131, in _draw_list_compositing_images
a.draw(renderer)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\artist.py", line 41, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\collections.py", line 931, in draw
Collection.draw(self, renderer)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\artist.py", line 41, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\collections.py", line 406, in draw
renderer.draw_path_collection(
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\backends\backend_agg.py", line 172, in draw_path_collection
return self._renderer.draw_path_collection(
ValueError: Expected 2-dimensional array, got 1

Traceback (most recent call last):
File "C:\Users/User/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\enmapboxplugin\enmapboxgeoalgorithms\provider.py", line 155, in processAlgorithm
result = self.processAlgorithm_()
File "C:\Users/User/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\enmapboxplugin\enmapboxgeoalgorithms\algorithms.py", line 1524, in processAlgorithm_
performance.report().saveHTML(filename=filename, open=True)
File "C:\Users/User/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\enmapboxplugin\hubflow\core.py", line 6028, in report
report.append(ReportPlot(fig)) # , caption=fittedLineText))
File "C:\Users/User/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\enmapboxplugin\hubflow\report.py", line 176, in __init__
array = fig2rgb_array()
File "C:\Users/User/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\enmapboxplugin\hubflow\report.py", line 170, in fig2rgb_array
figure.canvas.draw()
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\backends\backend_agg.py", line 407, in draw
self.figure.draw(self.renderer)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\artist.py", line 41, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\figure.py", line 1863, in draw
mimage._draw_list_compositing_images(
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\image.py", line 131, in _draw_list_compositing_images
a.draw(renderer)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\artist.py", line 41, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\cbook\deprecation.py", line 411, in wrapper
return func(*inner_args, **inner_kwargs)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\axes\_base.py", line 2747, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\image.py", line 131, in _draw_list_compositing_images
a.draw(renderer)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\artist.py", line 41, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\collections.py", line 931, in draw
Collection.draw(self, renderer)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\artist.py", line 41, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\collections.py", line 406, in draw
renderer.draw_path_collection(
File "D:\Programs\qgis3\apps\Python39\lib\site-packages\matplotlib\backends\backend_agg.py", line 172, in draw_path_collection
return self._renderer.draw_path_collection(
ValueError: Expected 2-dimensional array, got 1

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:\Users/User/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\enmapboxplugin\enmapboxgeoalgorithms\provider.py", line 169, in processAlgorithm
raise Exception('unexpected error')
Exception: unexpected error

Execution failed after 0.48 seconds

Loading resulting layers
Algorithm 'Regression Performance' finished

‌

[Andreas Rabe]

Please install QGIS 3.26+ and EnMAP-Box v3.11.

The error above is known and already fixed in the current EnMAP-Box version.

[Andreas Rabe]

Also note that we moved to GitHub.