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Remark on stably updating mean and standard deviation of data
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Source
Communications of the ACM archive
Volume 18 ,  Issue 8  (August 1975) table of contents
Page: 458  
Year of Publication: 1975
ISSN:0001-0782
Author
Ira W. Cotton  National Bureau of Standards, Washington, DC
Publisher
ACM  New York, NY, USA
Bibliometrics
Downloads (6 Weeks): 2,   Downloads (12 Months): 21,   Citation Count: 3
Additional Information:

abstract   references   cited by   index terms   collaborative colleagues  

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DOI Bookmark: Use this link to bookmark this Article: http://doi.acm.org/10.1145/360933.360981
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ABSTRACT

Although not published as a numbered algorithm, Hanson's article “Stably Updating Mean and Standard Deviation of Data” in the January, 1975, issue of Communications, [1] describes an algorithm for sequentially recomputing the mean and standard deviation of a weighted series of numbers when new numbers are added to the series. The procedure requires that only a summary matrix of data be retained, not the entire series, for the new mean and standard deviation to be computed.


REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

1
Richard J. Hanson, Stably updating mean and standard deviation of data, Communications of the ACM, v.18 n.1, p.57-58, Jan. 1975  [doi>10.1145/360569.360662]

CITED BY  3
Lloyd S. Nelson, Further remark on stably updating mean and standard deviation estimates, Communications of the ACM, v.22 n.8, p.483, Aug. 1979
D. H. D. West, Updating mean and variance estimates: an improved method, Communications of the ACM, v.22 n.9, p.532-535, Sept. 1979
Tony F. Chan , John Gregg Lewis, Computing standard deviations: accuracy, Communications of the ACM, v.22 n.9, p.526-531, Sept. 1979

INDEX TERMS

Primary Classification:
  G. Mathematics of Computing


Keywords:
mean, standard deviation

Collaborative Colleagues:
Ira W. Cotton: colleagues

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