This function calculate the percentiles of a vector of numbers
Usage
percentile_(x, p)
Arguments
x
Should be a vector
p
Should be a number, 0 => y =< 1
Value
A vector sorted with the elements divided by 100 parts
Details
To calculate the percentiles, the user should give a vector. This function divide the dataset in 100 parts as equal as possible. The formula is the following: