Handling Variable Number of Columns with Pandas – Python
I have a data set that looks like this (at most 5 columns – but can be less)
pandas
Sorting columns in pandas dataframe based on column name
I have a dataframe with over 200 columns. The issue is as they were generated the order is ['Q1.3','Q6.1','Q1.2','Q1.1',……] I need to sort the columns as follows: ['Q1.1','Q1.2','Q1.3',…..'Q6.1',……] Is there some way for me to do this within Python? Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the answers … Read more
How to shift a column in Pandas DataFrame
I would like to shift a column in a Pandas DataFrame, but I haven’t been able to find a method to do it from the documentation without rewriting the whole DF. Does anyone know how to do it?
DataFrame:
Convert Pandas Dataframe to nested JSON
I am new to Python and Pandas. I am trying to convert a Pandas Dataframe to a nested JSON. The function .to_json() doens’t give me enough flexibility for my aim.
pandas groupby sort within groups
I want to group my dataframe by two columns and then sort the aggregated results within the groups.
Pandas convert dataframe to array of tuples
I have manipulated some data using pandas and now I want to carry out a batch save back to the database. This requires me to convert the dataframe into an array of tuples, with each tuple corresponding to a “row” of the dataframe.
Faster way to read Excel files to pandas dataframe
I have a 14MB Excel file with five worksheets that I’m reading into a Pandas dataframe, and although the code below works, it takes 9 minutes!
Getting list of lists into pandas DataFrame
I am reading contents of a spreadsheet into pandas. DataNitro has a method that returns a rectangular selection of cells as a list of lists. So
efficiently convert uneven list of lists to minimal containing array padded with nan
consider the list of lists l
Pandas column access w/column names containing spaces
If I import or create a pandas column that contains no spaces, I can access it as such: