How do you create a legend in R?

How do you create a legend in R?

R legend function

1. x and y : the x and y co-ordinates to be used to position the legend.
2. legend : the text of the legend.
3. fill : colors to use for filling the boxes beside the legend text.
4. col : colors of lines and points beside the legend text.
5. bg : the background color for the legend box.

What is the use of legend () function in R?

legend() function in R Language is used to add legends to an existing Plot. A legend is defined as an area of the graph plot describing each of the parts of the plot. The legend plot is used to show statistical data in graphical form. bg: It defines background color for the legend box.

How do I remove a legend in R?

Remove a ggplot legend

1. Remove the legend title: p + theme(legend. title = element_blank()) .
2. Hide the entire legend to create a ggplot with no legend. Example of R code: p + theme(legend. position = “none”) .
3. Hide legend for a specific geometry, say geom_text() . Just specify the argument show.

How do I add a legend to a Barplot in R?

In R you can add a legend to any plot using the legend() command. You can also use the legend = TRUE parameter in the barplot() command. The barplot() command is the only general plot type that has a legend parameter (the others need a separate legend).

How do I use PCH in R?

The default R plot pch symbol is 1, which is an empty circle. You can change this to pch = 19 (solid circle) or to pch = 21 (filled circle). To change the color and the size of points, use the following arguments: col : color (hexadecimal color code or color name).

How do you create a regression in R?

The mathematical formula of the linear regression can be written as y = b0 + b1*x + e , where:

1. b0 and b1 are known as the regression beta coefficients or parameters:
2. e is the error term (also known as the residual errors), the part of y that can be explained by the regression model.

How do you add a legend to a plot in R?

To add legends to plots in R, the R legend() function can be used. A simplified format of the function is : legend(x, y=NULL, legend, fill, col, bg) x and y : the x and y co-ordinates to be used to position the legend. legend : the text of the legend. fill : colors to use for filling the boxes beside the legend text.

How do you create a legend in Excel?

To create a legend in Excel, start by clicking on the chart or graph. You’ll see a plus sign on the right. Click on this, and a Chart Elements menu pops up. Check the box next to “Legend.”. A chart or graph legend will immediately appear.

What is the function of a legend?

Function of Legend. In literature, the function of a legend is to present the story of human actions in such a way that they are perceived by the audience to be true. Actions are presented as if they have taken place within human history.