# Changeset 20610 in project

Ignore:
Timestamp:
10/03/10 16:55:22 (10 years ago)
Message:

release 0.1

Location:
release/4/statistics
Files:
4 edited

Unmodified
Removed
• ## release/4/statistics/tests/run.scm

 r18757 => 2) ; variance ; standard-deviation ; coefficient-of-variation ; standard-error-of-the-mean ; mean-sd-n ;; -- tests of distributional functions
• ## release/4/statistics/trunk/statistics.meta

 r18757 ((author "Peter C. R. Lane") ((author "Peter Lane") (synopsis "Statistics library") (license "GPL-3")
• ## release/4/statistics/trunk/statistics.scm

 r18757 ;; Rosner 115 ;; The probability density function (PDF) for a normal distribution ;; with mean mu and variance sigma at point x. (define (normal-pdf x mu sigma) (* (/ (* (sqrt (* 2 PI)) sigma)) (exp (* (- (/ (* 2 (square sigma)))) (square (- x mu)))))) ;; with mean mu and variance sigma-squared at point x. (define (normal-pdf x mu sigma-squared) (* (/ (sqrt (* 2 PI sigma-squared))) (exp (- (/ (square (- x mu)) (* 2 sigma-squared)))))) ;; CONVERT-TO-STANDARD-NORMAL (define (t-significance t-statistic dof . args) (set! t-statistic (exact->inexact t-statistic)) (set! dof (exact->inexact dof)) (let ((tails (get-keyword :tails args ':both))) (let ((a (beta-incomplete (* 0.5 dof) 0.5 (/ dof (+ dof (square t-statistic))))))
• ## release/4/statistics/trunk/statistics.setup

 r18757 'statistics '("statistics.o" "statistics.so" "statistics.import.so") '((version 1.0) '((version trunk) (static "statistics.o")))
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