We first define the function as a variable, myFirstFun, using the keyword function, which also receives n as argument (no type specification). The latter will exist within the function. We used an integer, but 'n' could also be a vector or a matrix or a string: R handles all this nicely for us.
America in the 20th Century. The 20th century heralded the beginning of a new era in fitness. President Theodore Roosevelt, perhaps the most physically fit president ever to occupy the Oval Office, used his power and own example to encourage U.S. citizens to be physically active.
A: According to one count, Presidents Ronald Reagan, George H.W. Bush and George W. Bush spent more time on vacation during their first year than President Obama did. Presidents Jimmy Carter and Bill Clinton spent less time on vacation..