Warren Weckesser questions

Warren Weckesser answers

• Save 16-bit numpy arrays as 16-bit PNG image
• Count number of events per hour given in datetime/numpy
• Coefficient of determination is different between scikit-learn and scipy libraries. why?
• Determine widening conversion of NumPy types
• Plot/Convert an expression coming from sympy: Taylor series with matplotlib
• Find index of min value in a matrix
• How to convert a numpy complex array to a two element float array?
• Estimating determinant using LAPACK wrapper for LU decomposition in Cython
• SciPy step response plot seems to break for some values
• Instantiate a matrix with x zeros and the rest ones