A new approach to Sheppard’s corrections - Maple Application Center
Application Center Applications A new approach to Sheppard’s corrections

A new approach to Sheppard’s corrections

Authors
: Dr. Giuseppe Guarino
Engineering software solutions from Maplesoft
This Application runs in Maple. Don't have Maple? No problem!
 Try Maple free for 15 days!

In the real world, variables are observed and recorded in finite precision through a rounding or coarsening operation, i.e. a grouping rule. Grouping includes also censoring or splitting data into categories during collection or publication, and so it involves continuous as well as discrete parent distributions. Sheppard's corrections are formulae which improve the computation of moments when data are grouped into classes. Here we give two speed procedures "raw2grp" and "grp2raw" to compute the correction to raw moments in terms of grouped moments (and viceversa) both in the continuous case and in the discrete case and both for univariate and multivariate parent distributions.

Application Details

Publish Date: April 30, 2010
Created In: Maple 12
Language: English

More Like This

Interactive Country Data Explorer
A Recursive Algorithm to Generate a Superpermutation of length n! + (n-1)! + (n-2)! + (n-3)! + n-3
Multivariate Distributions In Maple
ランダムウォーク
Joint Cumulants of Polykays
The Advanced Encryption Standard and its modes of operation
Decision Analysis using Bayes Rule
Regression and Data Fitting in Maple