Category "dtype"

Python/Pandas Add string to rows in a column that contain a character a specific number of times

I have a Pandas DataFrame(data) with a ['Duration'] column as 'object' type that has time durations in format: 'H:%M:%S' such as '1:47:54' with 7 characters, bu

Why are all my variables objects instead of numerical values (int,float) when uploaded?

I just started so that might be stupid, but I have following problem: I created a .csv-file for some basic data description. However, although they are all nume

How to get the relation between categorical and numerical variables of a dataframe?

I have a dataframe with 49 columns. Most of them are categorical (dtype object), some are numerical. As I'm a newbie in data science I tried to plot the Pearson