I ran a little loop in a jupyter notebook using the %timeit magic. The graph below gives the ratio of the time needed for numpy.zero to numpy.empty . For N=346 ... ... <看更多>

Question Why did you delete that code labels = np.zeros((0,5), dtype=np.float32) in the dataset.py? Additional context If I want to add some ... ... <看更多>

From the documentation: empty, unlike zeros, does not set the array values to zero, and may therefore be marginally faster. ... <看更多>

This section demonstrates the use of NumPy's structured arrays and record arrays, ... Use a compound data type for structured arrays data = np.zeros(4, ... ... <看更多>