Tagged "dataframe"

Select, drop, and rename dataframe columns in Chez Scheme

This post is the second in a series on the dataframe library for Chez Scheme. In this post, I will contrast the dataframe library with functions from base R and the dplyr package for selecting, dropping, and renaming columns.

A dataframe record type for Chez Scheme

As an exercise in my Chez Scheme learning journey, I have implemented a dataframe record type and procedures to work with the dataframe record type.

Reading and writing JSON files in R and Chez Scheme

I have previously written about how to read and write JSON files in R and Racket. In re-reading that old post, I’m struck by how it shows me tinkering without understanding.

Reading and writing JSON files in R and Racket

In learning about reading CSV files in Racket, I have started to reconsider whether storing small(ish) datasets in CSV files is the best default behavior.

Reading CSV files in R and Racket

In a previous post, I wrote about reading and writing data to file while retaining the structure and attributes of the data (i.