How to merge two dataframes side-by-side?

Question

is there a way to conveniently merge two data frames side by side?

both two data frames have 30 rows, they have different number of columns, say, df1 has 20 columns

Answer 1

I came across your question while I was trying to achieve something like the following:

So once I sliced my dataframes, I first ensured that their index are the same. In your case both dataframes needs to be indexed from 0 to 29. Then merged both dataframes by the index.

df1.reset_index(drop=True).merge(df2.reset_index(drop=True), left_index=True, right_index=True)