#lang racket ;;; Science Collection ;;; chi-squared-histogram-example.rkt ;;; Copyright (c) 2004-2011 M. Douglas Williams ;;; ;;; This file is part of the Science Collection. ;;; ;;; The Science Collection is free software: you can redistribute it and/or ;;; modify it under the terms of the GNU Lesser General Public License as ;;; published by the Free Software Foundation, either version 3 of the License ;;; or (at your option) any later version. ;;; ;;; The Science Collection is distributed in the hope that it will be useful, ;;; but WITHOUT WARRANTY; without even the implied warranty of MERCHANTABILITY ;;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public ;;; License for more details. ;;; ;;; You should have received a copy of the GNU Lesser General Public License ;;; along with the Science Collection. If not, see ;;; <http://www.gnu.org/licenses/>. ;;; ;;; ------------------------------------------------------------------- ;;; (require (planet williams/science/random-distributions/chi-squared) (planet williams/science/histogram-with-graphics)) (let ((h (make-histogram-with-ranges-uniform 40 0.0 10.0))) (for ((i (in-range 10000))) (histogram-increment! h (random-chi-squared 3.0))) (histogram-plot h "Histogram of the Chi Squared Distribution"))