daru

https://github.com/sciruby/daru

Ruby

Data Analysis in RUby

Daru::Maths::Statistics::Vector#percentil

Returns the value of the percentile q

Accepts an optional second argument specifying the strategy to interpolate
when the requested percentile lies between two data points a and b
Valid strategies are:
* :midpoint (Default): (a + b) / 2
* :linear : a + (b - a) * d where d is the decimal part of the index between a and b.
== References

This is the NIST recommended method (http://en.wikipedia.org/wiki/Percentile#NIST_method)

Source | Google | Stack overflow

Edit

git clone [email protected]:sciruby/daru.git

cd daru

open lib/daru/maths/statistics/vector.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Daru--Maths--Statistics--Vector-percentil-for-pr

# Commit to git

git add lib/daru/maths/statistics/vector.rbgit commit -m "better docs for Daru::Maths::Statistics::Vector#percentil"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-Daru--Maths--Statistics--Vector-percentil-for-pr

hub pull-request

# Celebrate!