A QTL is a *quantitative trait locus*: a genetic locus that contributes to variation in a quantitative trait. The goal of [R/qtlcharts](https://kbroman.org/qtlcharts/) is to provide interactive data visualizations for QTL analyses, and to make these visualizations available from R. It is a companion to the [R/qtl](https://rqtl.org) package.
Vignettes online at the [R/qtlcharts website](https://kbroman.org/qtlcharts/):
- [User guide](https://kbroman.org/qtlcharts/assets/vignettes/userGuide.html) - [Developer guide](https://kbroman.org/qtlcharts/assets/vignettes/develGuide.html) - [Use with R Markdown](https://kbroman.org/qtlcharts/assets/vignettes/Rmarkdown.html) \[[Rmd source](https://github.com/kbroman/qtlcharts/blob/gh-pages/assets/vignettes/Rmarkdown.Rmd)\] - [List of chart customization options](https://kbroman.org/qtlcharts/assets/vignettes/chartOpts.html)