python-for-R-users

Date: September 9, 2019 Author: Sylvia Tran

The work in this repository was designed for the LA R Users Group. This repository is intended for a high level overview of python for R users, data cleaning, preprocessing, modeling.

Scope

• The code provided uses Python 3.7.0
• Environment setup is not addressed as part of the scope of this repository
• The work was done on a MacOS, therefore nuances pertaining to Windows OS are not addressed
• The use of RandomForest is demonstrative, and neither intended to optimize hyperparameters nor minimize loss
• Forthcoming: R <-> Python Cheatsheet to be added to this repository in the coming weeks in the ./slides-etc/ directory

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This Repository:

• assets (pictures and .mov files for screen capture)
• notebooks (jupyter notebook (that can be converted to a slide deck))
• slides (holds slide deck as .html)
• src (.py file as an example)

Ways to Learn Python:

A. Interactive Python Can be accessed through RStudio using the Terminal by

1. starting from the working directory of choice
2. $ ipython

B. Jupyter ipynb (interactive Python notebook)

1. after downloading the repo, make a copy of the .ipynb file in the /notebooks folder
2. take apart the code line by line, or go to town on trying different things on the play dataset

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Content

1. Importing Packages
2. Loading Toy Datasets (sklearn) & using pandas
3. Cursory Inspection (pandas & numpy)
4. Light Cleaning (base python, pandas)
5. Train-test-split (sklearn)
6. Feature Scaling (sklearn)
7. Model (sklearn)