Ggplot change legend title

Start by creating a box plot using the ToothGrowth data set. Change the box plot fill color according to the grouping variable dose. The function labs can be used to easily update the legend title for a given aesthetic fill, color, size, shape, ggplot change legend title, linetype, … :.

A legend helps understand what the different plots on the same graph indicate. They basically provide labels or names for useful data depicted by graphs. In this article, we will discuss how legend names can be changed in R Programming Language. To change the legend title using this method, simply provide the required title as the value to its name attribute. Labs function is used to modify axis, labels, etc.

Ggplot change legend title

In this article, we will see how to change the legend title using ggplot2 in R Programming. We will use ScatterPlot. We use sample function to generate data for Users vector. Generally labs function is widely used for assigning title, subtitle, caption, and tags to plot, but it can also change the title of other aesthetics. Skip to content. Change Language. Open In App. Solve Coding Problems. Plot lines from a list of dataframes using ggplot2 in R How to plot a subset of a dataframe using ggplot2 in R? How to highlight text inside a plot created by ggplot2 using a box in R? How to change legend title in R using ggplot? How to Combine Multiple ggplot2 Plots in R? How to Plot a Smooth Line using ggplot2 in R? How to change legend title in ggplot2 in R?

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The goal of this R tutorial is to describe how to change the legend of a graph generated using ggplot2 package. Make sure that the variable dose is converted as a factor variable using the above R script. The allowed values for the arguments legend. Note that, the argument legend. In this case it is possible to position the legend inside the plotting area.

The goal of this R tutorial is to describe how to change the legend of a graph generated using ggplot2 package. Make sure that the variable dose is converted as a factor variable using the above R script. The allowed values for the arguments legend. Note that, the argument legend. In this case it is possible to position the legend inside the plotting area.

Ggplot change legend title

The aim of this tutorial is to describe how to modify plot titles main title , axis labels and legend titles using R software and ggplot2 package. The argument label is the text to be used for the main title or for the axis labels. Make sure that the variable dose is converted as a factor using the above R script. Change plot titles by using the functions ggtitle , xlab and ylab :.

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Move Axis Labels in ggplot in R. Save Article. ScatterPlor with changed title of Legend using labs. In the default setting of ggplot2, the legend is placed on the right of the plot. Rename legend labels and change the order of items in a given legend. Hire With Us. Like Article. More books on R and data science. This R graphics tutorial shows how to customize a ggplot legend. Thank you for your valuable feedback!

If you want to add a legend to a ggplot2 chart you will need to pass a categorical or numerical variable to color , fill , shape or alpha inside aes. Depending on which argument you use to pass the data and your specific case the output will be different.

To change the legend title using this method, simply provide the required title as the value to its name attribute. The R code below creates a scatter plot. In this case it is possible to position the legend inside the plotting area. The default is to use a different hue on the color wheel for each factor level, but it is also possible to manually specify the colors for each level. You will be notified via email once the article is available for improvement. Rename legend labels and change the order of items in a given legend. Help us improve. In the default setting of ggplot2, the legend is placed on the right of the plot. Change legend title. Article Tags :. Open In App.