2.1.20. czekitout.check.if_nonnegative_numpy_matrix

if_nonnegative_numpy_matrix(obj, obj_name)

Check whether input object is a nonnegative numpy matrix.

If the input object is not a nonnegative numpy matrix, then an exception is raised with the message:

The object ``<obj_name>`` must be a numpy matrix of nonnegative numbers.

where <obj_name> is replaced by the contents of the string obj_name. In the case that an exception is raised, said exception is of the type TypeError if the input object is not a numpy matrix of real numbers, otherwise said exception is of the type ValueError.

Parameters:

objany type

Input object.

obj_namestr

Name of the input object.