Tag Archives: R-bloggers

Parallel Coordinate Plots for Discrete and Categorical Data in R — A Comparison

Parallel Coordinate Plots are useful to visualize multivariate data. R provides several packages/functions to draw Parallel Coordinate Plots (PCPs):

In this post I will compare these approaches using a randomly generated data set with three discrete variables.

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Dynamic column/variable names with dplyr using Standard Evaluation functions

Data manipulation works like a charm in R when using a library like dplyr. An often overlooked feature of this library is called Standard Evaluation (SE) which is also described in the vignette about the related Non-standard Evaluation. It basically allows you to use dynamic arguments in many dplyr functions (“verbs”).

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