Error with Kendall Tau when no trends are found

[darbycobb]

Whenever a dataset has no discernible trends Wiggum usually alerts the user, saying there was no trend. With one dataset tried, there was an error in the backend with Kendall tau about the inputs being the same size, when different settings were used.

Sample of dataset:

[carolinesadlerr]

When people worked on it previously they were trying to replicate issue, it could not be replicated.
The issue only happened with that specific data set, however that data set is not in the data folder.

As of this last week, when I ran the file, I did not get any errors.

[brownsarahm]

check this branch