Why use a double square bracket in Pandas?
In python, [] returns a Pandas series object while the [[]] returns a data frame.
For the fit() function, it expects the X to be a data frame with 1 or more features. hence, [[]] are used.
In python, [] returns a Pandas series object while the [[]] returns a data frame.
For the fit() function, it expects the X to be a data frame with 1 or more features. hence, [[]] are used.