There are many methods to change the legend title in ggplot2 depending on the type of aesthetic mapping used in your plot, but we will see the two methods. Method 1: Using the labs() function Method 2: Using the scale_fill_discrete() function Method 1: Using the labs() function To change a legend title in ggplot2, you … Read more
The stat_summary() is a ggplot2 library function in R that allows for tremendous flexibility in the specification of summary functions. The summary function can operate on a data frame (with argument name fun.data) or a vector (fun.y, fun.ymax, fun.ymin). The stat_summary() function calculates various summary statistics for data points, such as the mean, median, maximum, minimum, … Read more
The scale_colour_brewer() is an R function from the ggplot2 package that provides sequential, diverging, and qualitative color schemes from ColorBrewer. These are particularly well suited to display discrete values on a map. Syntax scale_colour_brewer( …, type = “seq”, palette = 1, direction = 1, aesthetics = “colour” ) Parameters type: It is one of “seq” … Read more
The scale_fill_brewer() function in R uses a range of colors from a set of palettes in the RColorBrewer package. It changes the fill color of ggplot2 plots, such as boxplots, bar plots, violin plots, dot plots, etc. The scale_fill_brewer() function takes several arguments, including palette, which specifies the name of the color palette to use, … Read more
The scale_colour_distiller() is a function from the ggplot2 package that applies a color scale to the color aesthetic of a plot. For example, you can use the scale_colour_distiller() function to create a color gradient for a scatter plot based on a third variable. The scale_colour_distiller() function uses a color scale generated using a distiller color … Read more
The scale_fill_distiller() is a function from the ggplot2 package in the R that applies a color scale to the fill aesthetic of a plot. For example, scale_fill_distiller(palette = “Spectral”, n = 7) will create a color scale with 7 colors from the Spectral palette. Syntax scale_fill_distiller( …, type = “seq”, palette = 1, direction = … Read more
The scale_colour_fermenter() is a ggplot2 package’s function in R that adjusts the color of a categorical variable in a plot based on a specified color palette. It changes the color of a variable mapped to the color aesthetic in a ggplot2 plot. The scale_colour_fermenter() function takes a few arguments, including the name of the color … Read more
The scale_fill_fermenter() is a function in the ggplot2 package of R used to apply a color scale to the fill aesthetic of a plot. It creates a sequential color palette that ranges from a light color to a dark color, with the colors chosen to be perceptually uniform. Syntax scale_fill_fermenter( …, type = “seq”, palette … Read more
To save a plot to an image file in R, follow the below steps. Call a function to open a new graphics file, such as png(), jpg(), or pdf(). In the next step, call the plot() function to generate the graphics image. At last, call the dev.off() function to close the graphics file. If you … Read more
R provides many built-in datasets; for this example, we will use the pressure dataset. The pressure dataset contains observations of the vapor pressure of mercury over a range of temperatures. head(pressure) Output temperature pressure 1 0 0.0002 2 20 0.0012 3 40 0.0060 4 60 0.0300 5 80 0.0900 6 100 0.2700 To create a dataset … Read more