[Pyublas] Square matrix?

[João Luís Silva]

Hello,

I've recently found pyublas and it's being most useful to link python
and C++. However I've found a problem that doesn't make sense to me. I
can pass a non-square matrix from Python to C++, but when the matrix is
square I'll get the error:

Boost.Python.ArgumentError: Python argument types in
numerical_method.cpp_function(matrix)
did not match C++ signature:
cpp_function(pyublas::numpy_matrix<std::complex<double>,
boost::numeric::ublas::basic_row_major<unsigned int, int> >)

In the C++ side I have:

void cpp_function(pyublas::numpy_matrix<std::complex<double>> M)

and in Python:

numerical_method.cpp_function(np.asmatrix(self.M))


The same square matrix that won't work will work fine if reshaped to a
non-square shape. I've looked in the Ublas and pyUblas documentation but
couldn't find a specific type for square matrices.

Regards,
Jo?o Silva

[Andreas Kloeckner]

Try with np.asarray. I've never tried numpy's matrix type.

Andreas

Post by João Luís Silva
Hello,
I've recently found pyublas and it's being most useful to link python
and C++. However I've found a problem that doesn't make sense to me. I
can pass a non-square matrix from Python to C++, but when the matrix is
Boost.Python.ArgumentError: Python argument types in
numerical_method.cpp_function(matrix)
cpp_function(pyublas::numpy_matrix<std::complex<double>,
boost::numeric::ublas::basic_row_major<unsigned int, int> >)
void cpp_function(pyublas::numpy_matrix<std::complex<double>> M)
numerical_method.cpp_function(np.asmatrix(self.M))
The same square matrix that won't work will work fine if reshaped to a
non-square shape. I've looked in the Ublas and pyUblas documentation but
couldn't find a specific type for square matrices.
Regards,
Jo?o Silva

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