Defining x and y axes in Spectrogram Function

[jefsummers]

I'm not familiar with spectrogram so the below DOES NOT WORK, but it shows how you may assign. The problem I appear to have here is not having the data.

import numpy as np
ht = np.array([1,2,3,4,5,6,7,8,9])
fs = np.array([3,1,5,2,6])
from scipy.signal import spectrogram  
spec_f, spec_t, spec = spectrogram(ht,fs)  
plt.pcolormesh(spec_t, spec_f, spec, shading='gouraud')  
plt.ylabel('Frequency [Hz]')  
plt.xlabel('Time [sec]')  
plt.show()