When preparing data for building credit risk classifiers for small to medium size banks, most of the operations reduce to filtering (removing rows) or transforming (binning categoricals) in tabular data of < 1,000,000 entries.

In this repository, two simple transformations have been specified in exactly the format we use in production. They are one "drop" operation in which you must remove all rows that have a set of values for a particular column and one "combine" command which just bins two values into a single value. Most of our UX bottle necks (because of execution time) reduce to these operations.

The dataset is real consumer loan data from lending club.

There are two python implementations and one node.js implementation located in:

• python-benchmarks/sframe-benchmark.py
• python-benchmarks/pandas-benchmark.py
• node-benchmarks/node-benchmark.js

In python-benchmarks/ there is a pip-requirements file. Create a virtual environment and pip install.

Having node (tested on v5.x) and npm installed run npm install inside node-benchmarks/.

./run-benchmarks.sh

A lot of stuff is printed, the important lines are the ones that display the total time taken to apply both operations:

• pandas apply transforms
• sframe apply transforms
• node apply transforms