pygsti.tools.matrixtools.column_norms

column_norms(m, ord=None)

Compute the norms of the columns of a matrix.

Parameters:

• m (numpy.ndarray or scipy sparse matrix) – The matrix.

• ord (int or list of ints, optional) – The order of the norm. See numpy.linalg.norm(). An array of orders can be given to specify the norm on a per-column basis.

Returns:

A 1-dimensional array of the column norms (length is number of columns of m).

Return type:

numpy.ndarray