Customized R

How to set graphical parameters in R?

The par() function is the main function for setting graphical parameters in base R and the mar = argument sets the size of the margins that surround the plot. You can adjust the size of the margins using the notation par(mar = c(bottom, left, top, right)) where the arguments bottom, left, top and right are the size of the corresponding margins.

Can you change a plot in R?

The good news is that the base R graphics system allows you to change almost any aspect of your plot. There are however a couple of things to bear in mind. Firstly, although many of the approaches we introduce in this section will work with most base R plotting functions, there’s no true consistency between functions.

Can I use my own R functions in data wrangling?

You might want to use your own R functions as part of your data wrangling steps. This is an introduction for such case. If you want to write your own R functions to extract data, please refer to Write R Script for Data.

How to add a function in R?

Install R Package Create a new R script from the left tree. Define a function. Please note that the first argument is data frame and the output is also data frame, so that it can be used from command line. Then, click "Save" button. You can use the function from a data frame you want to apply. Click 'Add' (Plus) button and click "Custom Command".

How do I specify a colour in R?

This argument can either take an integer value to specify the colour or a character string giving the colour name. For example, col = "red" changes the plotting symbol to red. To see a list of all 657 preset colours available in base R use the colours() function (you can also use colors()) or perhaps even easier see this link.

How to adjust plot margins in R?

To remedy this we need to adjust the plot margins using the par() function and the mar = argument before we plot the graph. The par() function is the main function for setting graphical parameters in base R and the mar = argument sets the size of the margins that surround the plot.