valueerror input contains nan infinity or a value too large for dtype('float64'). pandas code example
Example 1: ValueError: Input contains NaN, infinity or a value too large for dtype('float32'). site:stackoverflow.com
np.all(np.isfinite(mat))
Example 2: ValueError: Input contains NaN, infinity or a value too large for dtype('float32'). site:stackoverflow.com
np.any(np.isnan(mat))