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An Efficient Punched-Card Method of Computing ΣX, ΣX2, ΣXY, and Higher Moments

Published online by Cambridge University Press:  01 January 2025

Max E. Ellis  and
Arthur J. Riopelle
Max E. Ellis
Affiliation:
Oscar Mayer and Co., Madison, Wisconsin
Arthur J. Riopelle
Affiliation:
University of Wisconsin
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Abstract

A method of computing ΣX, ΣX2, ΣXY and higher moments on IBM equipment is described. The basic method is that of successively summary punching, collating a variable number of blank cards behind these summary cards, gang-punching the data from the summary cards into the blank cards, and totalling the entries on these summary cards. The method appears to have several advantages over those previously described, especially if coded data are used.

Type
Original Paper
Information
Psychometrika , Volume 13 , Issue 2 , June 1948 , pp. 79 - 85
Copyright
Copyright © 1948 The Psychometric Society

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