6 Answered Questions for the topic dataframe
how do I calculate average value of columns of a file in Python?
import pandas as pdmy_file = pd.read_csv("file.tsv", sep="\t")my_file.head()my_file['item_price'].mean()I could easily do this by using Pandas. However how could I do it without using Pandas?... more
Get list from pandas DataFrame column headers?
I want to get a list of the column headers from a pandas DataFrame. The DataFrame will come from user input so I won't know how many columns there will be or what they will be called.For example,... more
Renaming columns in pandas?
I have a DataFrame using pandas and column labels that I need to edit to replace the original column labels. I'd like to change the column names in a DataFrame `A` where the original column names... more
Adding new column to existing DataFrame in Python pandas?
I have the following indexed DataFrame with named columns and rows not- continuous numbers: a b c d 2 0.671399 0.101208 -0.181532 0.241273 3 0.446172... more
Select rows from a DataFrame based on values in a column in pandas?
How to select rows from a DataFrame based on values in some column in pandas? In SQL I would use: select * from table where colume_name = some_value. *I tried to look at pandas documentation... more