Monday 30 July 2018

What is the Big O Complexity of Reversing the Order of Columns in Pandas DataFrame?

So lets say I have a DataFrame in pandas with a m rows and n columns. Let's also say that I wanted to reverse the order of the columns, which can be done with the following code:

df_reversed = df[df.columns[::-1]]

What is the Big O complexity of this operation? I'm assuming this would depend on the number of columns, but would it also depend on the number of rows?



from What is the Big O Complexity of Reversing the Order of Columns in Pandas DataFrame?

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