Python Pandas Input/Output – Pickling

If you are leaning towards a career as a Data Scientist or just a coder looking to expand their skill set, the art of pickling is a must-have. This article focuses on creating, saving, and reading various object types to/from a pickle file. Syntax pandas.read_pickle(filepath_or_buffer, compression=’infer’, storage_options=None) The return value is an unpickled object of … Read more

The Pandas apply() function

In this video and blog tutorial, we will learn how to apply a function to a Pandas data frame or series using the apply() function. Using this tool, we can apply any kind of function to segregate our data and change it with a very limited amount of code. Here’s the syntax from the official … Read more

Python Pandas pivot() Function

Syntax pandas.pivot(data, index=None, columns=None, values=None) Return Value: The return value for the pivot() function is a reshaped DataFrame organized by index/column values. Background Direct quote from the Pandas Documentation website: / column values. This function does not support data aggregation. If there are multiple values, they will result in a Multi-Index in the columns. This … Read more

Python Pandas melt()

Syntax pandas.melt(frame, id_vars=None, value_vars=None, var_name=None, value_name=’value’, col_level=None, ignore_index=True) Return Value The return value for the melt() function is an unpivoted DataFrame. Background Direct quote from the Pandas Documentation website: “This function massages a DataFrame into a format where one or more columns are identifier variables (id_vars). While all other columns, considered measured variables (value_vars), are … Read more