kf_book/gaussian_internal.py axis label error

[BorgPhysics]

The kf_book/gaussian_internal.py code has a bug that over-writes the x and y axis titles. The plot_correlated_data code here:

if xlabel is not None:
plt.xlabel('Height (in)');

if ylabel is not None:

plt.ylabel('Weight (lbs)')

Should be something like this:

if xlabel is None:
    xlabel = 'Height (in)'

if ylabel is None:
    ylabel = 'Weight (lbs)'
    
plt.xlabel(xlabel);
plt.ylabel(ylabel)

[BorgPhysics]

I see in other examples that None is passed in to drop the labels entirely. I guess that it should be this in order to fit with the other code:
if xlabel is not None:
plt.xlabel(xlabel);

if ylabel is None:
plt.ylabel(ylabel)

[rlabbe]

Thanks, fixed!