Counting Arguments In R

Neil Saunders shares methods for interrogating argument lists in R:

“Some R functions have an awful lot of arguments”, you think to yourself. “I wonder which has the most?”

It’s not an original thought: the same question as applied to the R base package is an exercise in the Functions chapter of the excellent Advanced R. Much of the information in this post came from there.

There are lots of R packages. We’ll limit ourselves to those packages which ship with R, and which load on startup. Which ones are they?

It’s a fun exercise and helpful for learning a bit more about how to work with arguments when metaprogramming in R.

Related Posts

Using ggpairs To Find Correlations Between Variables In R

Akshay Mahale shows how to use the ggpairs function in R to see the correlation between different pairs of variables: From the above matrix for iris we can deduce the following insights: Correlation between Sepal.Length and Petal.Length is strong and dense. Sepal.Length and Sepal.Width seems to show very little correlation as datapoints are spreaded through out the plot area. Petal.Length and Petal.Width also shows strong correlation. Note: The […]

Read More

Testing Spatial Equilibrium Concepts With tidycensus

Ignacio Sarmiento Barbieri walks us through the concept of spatial equilibrium and tests using data from the tidycensus package: Let’s take the model to the data and reproduce figures 2.1. and 2.2 of “Cities, Agglomeration, and Spatial Equilibrium”. The focus are two cities, Chicago and Boston. These cities are chosen because both differ in how easy […]

Read More

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.


June 2018
« May Jul »