Writing your own functions in R

One of the nice features in R is the ability to:

Write new functions in R

Write functions in R that perform many R functions in a sequence

It is convenient to work in an editor like emacs, try things out, find all the components needed to do the job and then save the set as an R function
(e.g., cup.measures).

Call R functions from a C program

Call C programs from an R function

 

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Transcript

Next, we'll talk a little bit about writing your own functions in R, and I said earlier that you could think about running emacs, running a shell buffer within it, and typing in your R commands.  And now, as you enter your commands, you can find out the sequence of commands you want to execute, group them into a function, name it, save it, and re-use that function.