Nov 7, 2013 · How do I check if a pandas DataFrame is empty? I'd like to print some message in the terminal if the DataFrame is empty.

Oct 3, 2018 · I work with Series and DataFrames on the terminal a lot. The default __repr__ for a Series returns a reduced sample, with some head and tail values, but the rest missing. Is there …

Pandas 0.21+ Answer There have been some significant updates to column renaming in version 0.21. The rename method has added the axis parameter which may be set to columns or 1. …

Mar 19, 2019 · To get high-precision timestamps in Python, see my answer here: High-precision clock in Python. How to iterate over Pandas DataFrame s without iterating After several weeks …

Python notebooks don't require printing tables because dataframes are rendered into nicely formatted html tables. In 99.9% of cases you'll only want to pretty print tables when using …

310 I tried the solutions above and I do not achieve results, so I found a different solution that works for me. The ascending=False is to order the dataframe in descending order, by default it …

pandas python how to count the number of records or rows in a dataframe Asked 12 years, 6 months ago Modified 3 years, 4 months ago Viewed 272k times

Aug 23, 2016 · the data-frame will be explicitly set to null in the above statements Firstly, the self reference of the dataframe is deleted meaning the dataframe is no longer available to python …

I would like to read several CSV files from a directory into pandas and concatenate them into one big DataFrame. I have not been able to figure it out though. Here is what I have so far: import …

May 21, 2019 · 1. errors= is sometimes useful If a file has to have a certain encoding but the existing dataframe has characters that cannot be represented, errors= can be used to "coerce" …