Code Blog

Choropleths from Census Data Pt. 2

Python
cendat
Census
API
choropleth maps

An updated mockup with direct labelling

Sep 7, 2025
Lance Couzens

A Quick Patch / Love Letter to Python

Python
cendat
Census
API

In which I describe a satisfying conclusion to a recent bug

Sep 6, 2025
Lance Couzens

Choropleths from Census Data

Python
cendat
Census
API
choropleth maps

Starting to Plan for the Next Big Feature

Sep 6, 2025
Lance Couzens

cendat ver 0.7.0a3

Python
cendat
Census
API

A new preview version with geometry fetching

Sep 3, 2025
Lance Couzens

cendat ver 0.5.0

Python
cendat
Census
API

New methods for better variable discovery and more.

Aug 28, 2025
Lance Couzens

cendat ver 0.4.5

Python
cendat
Census
API

Just when I said I was done for a while…

Aug 27, 2025
Lance Couzens

cendat ver 0.4.4

Python
cendat
Census
API

This post covers a recent performance upgrade.

Aug 26, 2025
Lance Couzens

cendat Patch ver 0.4.3

Python
cendat
Census
API

This post covers a recent patch, and light ruminations on the importance of testing.

Aug 24, 2025
Lance Couzens

New Features in cendat ver 0.4.1

Python
cendat
Census
API

This post covers some new cendat features.

Aug 22, 2025
Lance Couzens

Introducing cendat, a Python Library for Simplifying and Speeding up Use of the Census API

Python
cendat
Census
API

This post introduces cendat and demonstrates its use through examples.

Aug 13, 2025
Lance Couzens

Thread Pooling a Python Process to Build a Stacked ACS DataFrame

Python
Thread Pooling

This post demonstrates how to take a standard list comprehension of calls to the Census API and pool it for dramatic time savings.

Aug 5, 2025
Lance Couzens

Building a Technical Trading Data & Analytics Pipeline

R
Python
Investing

This post is the first in a series chronicling a personal project: setting up a technical investment data and analytics pipeline with Python and R

Apr 1, 2025
Lance Couzens

Building and Working with a List of ggplot Objects in R

R
Graphics
Lists
Census API

Here we make a list of choropleth maps

Mar 22, 2025
Lance Couzens

Decoupling Dynamic Code from a Static R Codebase

R
Quality

Here we look at 2 ways to isolate the code that may change from the code that doesn’t need to

Mar 20, 2025
Lance Couzens

R vs. Python Query Compute Time Example

R
Python

Here we compare runtime to query a large csv in R and Python

Mar 19, 2025
Lance Couzens

Recreating Some Tidy-Style R Operations with Python and Polars

R
Python

This post lays out a series of examples that helped me break into Python as a Tidy-style R programmer

Mar 19, 2025
Lance Couzens
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