问题
Is there in native Python 3.X library or in scipy/numpy/matplolib libraries a function or their short set which could help me to draw a plot similar to this one(?):
What would be an efficient way to achieve something like this? Thank you in advance.
回答1:
The bottom plot is the result of Continuous Wavelet Transform. There is a function called cwt() in Scipy. Check it out here. http://docs.scipy.org/doc/scipy/reference/generated/scipy.signal.cwt.html
来源：https://stackoverflow.com/questions/28548116/time-frequency-color-map-in-python