hpaulj questions

hpaulj answers

• Python Numpy: np.array converts list values with string lengths longer than 30 to '<str_, len() = ##>'
• Slicing of Python Array
• Converting numpy array values into integers
• Python create an empty sparse matrix
• How to use numpy as_strided (from np.stride_tricks) correctly?
• Elegant way to check empty result of numpy.nonzero
• Comparing Numpy/Pandas arrays with mixed elements (string & floats)
• This (modulo 2) binary matrix multiplication algorithm seems to underperform. What can I do better?
• Display subgroups of commands with argparse subparser
• NumPy vectorize() or dot() appears buggy