Michael Chow
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mchow.com
Michael Chow
@mchow.com
220 followers 110 following 9 posts
cog psych phd, table displayer, plant enthusiast.

data science tools @posit.co.
senior advisor at CodeForPhilly.
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mchow.com
New post! Great Tables: Becoming the Polars .style property

When you use Polars `DataFrame.style` it returns a Great Tables object. This is a bit cheesy, but I look back on all the pieces the open source community chipped in to make this happen 🥲.

posit-dev.github.io/great-tables...
Python code using Polars and great_tables libraries to create a DataFrame with two columns and apply a blue background style to rows where column 'a' contains null values. The code is followed by an image showing the resulting styled table. Here is the Python code: ``` import polars as pl from great_tables import loc, style ( pl.DataFrame({"a": [1, None], "b": [3, 4]}) .style .tab_style( style.fill("aliceblue"), loc.body(rows=pl.col("a").is_null()) ) ) ```
April 17, 2025 at 4:18 PM
mchow.com
I'm looking to contribute to tools for analyzing public transit data in 2025--and would love to hear from folks!

posit-dev.github.io/great-tables...
A table made by Great Tables, showing names of Paris Metro stations. There is a column called lines, which shows each line number at that station. And a column called passengers, with the number of passengers with the total number of station entries in 2021.
December 19, 2024 at 8:51 PM