Names of R's available packages

Question

I\'m eager to know,

• how many package names on CRAN have two, three, N characters?
• which combinations have not yet been used (\"unpoppler\")
• h

Answer 1

Make a vector of all the packages using

myList <- available.packages()[,'Package']

Then you can analyze however you want. For example, a list of packages with just two character names

myList[grep('^..$', myList)]