Creating a new package

Before getting started, you will need to load two packages:

> install.packages("roxygen2")

> install.packages("devtools")

You now want to open File in RStudio and select New Project, which will put you at this point:

Select a new directory as desired, and specify R Package, as shown in the following screenshot:

You will now name your package – I've innovatively called this one package – and select Create Project:

Go to your Files tab in RStudio and you should see several files populated like this:

Notice the folder called R. That is where we will put the R functions for our package. But first, click on Description and fill it out accordingly, and save it. Here is my version, which will be a function to code all missing values in a dataframe to zero:

I've left imports and suggests blank. This is where...