Search for tag: "language"

In R, loops are often not the most efficient way to do repetitive calculations. Rather than doing the calculations for each value of a variable it is much more efficient to organize the values of…

A grouped expression is a collection of R commands or expressions enclosed in curly brackets {}. R regards a grouped expression as a single expression with a single value, although when such an…

In SAS, arrays provide a convenient way to refer to other variables via an index-able alias. This is convenient when you want to do the same operation on multiple variables in a data set. Having an…