1 дек. 2015 г. · I have a dataframe with values like AB 1 4 2 6 3 9. I need to add a new column by adding values from column A and B, like ABC 1 4 5 2 6 8 3 9 12.

23 дек. 2022 г. · I have a mock pandas dataframe 'df' where I want to create a new column 'fruit' and was wondering the easiest way to do this.

23 сент. 2012 г. · The best method to add the values of a Series as a new column of a DataFrame could be using assign.

6 июл. 2021 г. · I'm looking for a way to create a new column in df2 that gets number of rows based on a condition where all columns in df1 has values greater than their ...

12 нояб. 2014 г. · Two steps to this - first is to write a function that does the translation you want - I've put an example together based on your pseudo-code.

13 апр. 2022 г. · You can approach it this way -. Get the desired user's index in the dataframe. Then for that index add location or any new column.

22 апр. 2015 г. · I would like to add a column 'D' to a dataframe like this: U,L 111,en 112,en 112,es 113,es 113,ja 113,zh 114,es based on the following Dictionary

28 мая 2020 г. · I would like to create a new column in Python and place in a specific position. For instance, let "example" be the following dataframe.

8 апр. 2015 г. · I have an existing dataframe which I need to add an additional column to which will contain the same value for every row.

11 нояб. 2013 г. · If you only have two choices to select from then use np.where: df['color'] = np.where(df['Set']=='Z', 'green', 'red')