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List of useful functions in R.

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Round

• Rounds the values to a specified number

round(x, digits = 0) 

Factorial

• The product of all positive integers less than or equal to x.

factorial(x)

Mean

• Finds the mean(average)

Mean(x, ...)

args

• Displays the argument name and corresponding default values of a function or primitive.

args(name) 

Sample

• Sample takes a sample of the specified size from the elements of x using either with or without replacement .

sample(x, size, replace = FLASE, prob = NULL) 

sqrt

• Computes the square root of x.

sqrt(x) 

replicate

• Repeated evaluation of an expression n times.

replicate(n, expr)