Ggplot change legend title

You can also remove all the legends in a graph, using theme. There are two ways of changing the legend title and labels. The first way is to tell the scale to use have a different title and labels, ggplot change legend title. The second way is to change data frame so that the factor has the desired form.

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. Their values should be between 0 and 1.

Ggplot change legend title

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. It can be used to change the legend title by providing the appropriate title name to col attribute. 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?

You will be notified via email once the article is available for improvement. It can be used to change the legend title by providing the appropriate title name to col attribute. Plot lines from a list of dataframes using ggplot2 in R How to plot a subset of a dataframe ggplot change legend title ggplot2 in R?

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.

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.

Ggplot change legend title

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. Passing the categorical variable to color inside aes the data will be plotted based on groups and an automatic legend will you up. You can pass a categorical or a numerical variable. If the plot you are creating allows adding a fill color you can use the fill argument inside aes , so the boxes of the legend will be colored.

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Last Updated : 30 May, Improve Improve. Plotting multiple time series on the same plot using ggplot in R. ScatterPlor with changed title of Legend using labs. A legend helps understand what the different plots on the same graph indicate. Vote for difficulty :. Plot labels at end of ggplot line graph in R. Open In App. Example of plot library ggplot2 p. For example, you might have one legend for point shape and another for point color and size. The legend can be a guide for fill , colour , linetype , shape , or other aesthetics. Change legend title. It can be used to change the legend title by providing the appropriate title name to col attribute.

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.

Like Article. Give a comment Cancel reply Want to post an issue with R? The R code below creates a scatter plot. In the default setting of ggplot2, the legend is placed on the right of the plot. Contribute your expertise and make a difference in the GeeksforGeeks portal. Engineering Exam Experiences. Hide the entire legend to create a ggplot with no legend. Please go through our recently updated Improvement Guidelines before submitting any improvements. Like Article. Practical Guide to Cluster Analysis in R. Create ScatterPlot with Changed Title. Open In App. Skip to content. Control Size of ggplot2 Legend Items in R.