hpaulj questions

hpaulj answers

• OSError: Unable to open file (file signature not found) / End of HDF5 error back trace
• sparse or dense storage of a matrix
• Can't get NLTK-Trainer to recognize/ work with scikit-learn classifiers
• TypeError: Improper input: N=3 must not exceed M=1, not sure what's wrong with my dimensions?
• Transporting vectorized Matlab code to python, numpy
• genfromtxt creates 1D array of tuples instead of 2D array
• How to specify the last index explicitly to np.ufunc.reduceat
• assigning to a wrapped slice of a numpy array
• Python argparse.ArgumentParser - option name starting with number?
• in numpy, what is the difference between calling MA.masked_where and MA.masked_array?