# Boxplots without boxes

**Greg's Research » R**, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here)

Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.

Let’s say you have several categories with multiple data points each that you would like to plot as individual points. Even if you have only a single point, the R graphics package will plot a line (without a box for lack of data). Overriding the default setting with e.g. pch = 1 does not help.

R’s `boxplot`

function (or the `plot`

function for that matter) – correctly – generates a boxplot for each category. If you would like to see individual points instead of boxes, the following code snippet could help by using the `points`

function:

# Plot the boxplot as usual, but in white colour to make the boxes invisible, but keep the axes.

```
boxplot(m$var ~ m$cat, xlab = "Category", ylab = "Variable", border = "white")
```

# Plot the data again into the same plot and customise the point shape, etc to your liking

```
points(m$var ~ m$cat, pch = 1)
```

Voila!

**leave a comment**for the author, please follow the link and comment on their blog:

**Greg's Research » R**.

R-bloggers.com offers

**daily e-mail updates**about R news and tutorials about learning R and many other topics. Click here if you're looking to post or find an R/data-science job.

Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.