Code Snippet Corner

Real-world examples of Python being used to solve complex data problems, primarily using Jupyter notebooks.

Recasting Low-Cardinality Columns as Categoricals

Recasting Low-Cardinality Columns as Categoricals

Downcast strings in Pandas to their proper data-types using HDF5.
Code Snippet Corner
3 min read
Matthew
June 03
Removing Duplicate Columns in Pandas

Removing Duplicate Columns in Pandas

Dealing with duplicate column names in your Pandas DataFrame.
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3 min read
Matthew
May 28
Using Random Forests for Feature Selection with Categorical Features

Using Random Forests for Feature Selection with Categorical Features

Python helper functions for adding feature importance, and displaying them as a single variable.
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2 min read
Matthew
September 24
Tuning Random Forests Hyperparameters with Binary Search Part III: min_samples_leaf

Tuning Random Forests Hyperparameters with Binary Search Part III: min_samples_leaf

Tune the min_samples_leaf parameter in for a Random Forests classifier in scikit-learn in Python .
Code Snippet Corner
4 min read
Matthew
September 17
Tuning Random Forests Hyperparameters with Binary Search Part II: max_depth

Tuning Random Forests Hyperparameters with Binary Search Part II: max_depth

Tune the max_depth parameter in for a Random Forests classifier in scikit-learn in Python
Code Snippet Corner
2 min read
Matthew
September 10
Tuning Machine Learning Hyperparameters with Binary Search

Tuning Machine Learning Hyperparameters with Binary Search

Tune the n_estimators parameter in for a Random Forests classifier in scikit-learn in Python.
Code Snippet Corner
4 min read
Matthew
September 03
Importing Excel Datetimes Into Pandas, Part II

Importing Excel Datetimes Into Pandas, Part II

Import dates & times from Excel .xlsx files into Pandas!
Importing Excel Datetimes Into Pandas, Part I

Importing Excel Datetimes Into Pandas, Part I

Pandas & Excel, Part 1.