It means: 'O' (Python) objects. Source. The first character specifies the kind of data and the remaining characters specify the number of ... ... <看更多>

dtype =float32). Finally, unlike Python lists, NumPy arrays can explicitly be multi-dimensional; here's one way of initializing a multidimensional array ... ... <看更多>

... <看更多>

long is infinite precision and that's the largest available integer type. # python 2.7 >>> np.dtype(int).char ... ... <看更多>