Python中两个数据框之间的相关性

Question

I have a DataFrame with Job Area Profiles which look similar to this:

Now I have some user input, which creates an user DataFrame. This looks like this:

Now, I want to determine the correlation between User XYZ's Profile and the profile for Cloud and Data Science. I've tried this:

job_df.corrwith(user_df)

But this is getting me NaN. How do I solve this?

Answer 1

The function is working, but you cannot find the correlation with a dataframe consisting of only one datapoint, since you'll get a divide by zero error. It therefore returns NaNs, see the equation .

If you run the function with the full datasets then you'll be fine.