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added error message in fallback to matvec failure #10925

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wants to merge 8 commits into from
Closed

added error message in fallback to matvec failure #10925

wants to merge 8 commits into from

Commits on Oct 13, 2019

  1. added error message in fallback to matvec failure 

    added specific error message when sparse.linalg.LinearOperator.matmat cannot fallback properly to matvec

        try:
            return np.hstack([self.matvec(col.reshape(-1,1)) for col in X.T])
        except ValueError:
            raise ValueError('The user-defined matvec(v) function must properly
                             handle the case where v has shape (N,1).')
    @lobpcg
    lobpcg committed Oct 13, 2019
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  2. multiline typo fixed

    @lobpcg
    lobpcg committed Oct 13, 2019
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  3. improved string formatting

    @lobpcg
    lobpcg committed Oct 13, 2019
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  4. adding more details in the output 

    ``` 
       except ValueError:
            col = X.T[:,0]
            matvec_col = self.matvec(col.reshape(-1,1))
            raise ValueError('The user-defined matvec(v) function must return'
                             'shape (N,1) if v has shape (N,1). Instead,'
                             'matvec(v) has shape %r, where v has shape %r.' 
                             % (matvec_col.shape, col.shape))
```
    @lobpcg
    lobpcg committed Oct 13, 2019
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  5. Merge pull request #1 from scipy/master 

    master update
    @lobpcg
    lobpcg committed Oct 13, 2019
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  6. Merge pull request #2 from lobpcg/master 

    update the fork to the latest master
    @lobpcg
    lobpcg committed Oct 13, 2019
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  7. try first slab at the unit test

    @lobpcg
    lobpcg committed Oct 13, 2019
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  8. typos fixed, string added

    @lobpcg
    lobpcg committed Oct 13, 2019
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