SAS Macros for Analysis of Unreplicated 2^k and 2^(k-p) Designs with a Possible Outlier
Many techniques have been proposed for judging the significance of effects in unreplicated 2^k and 2^(k-p) designs. However, relatively few methods have been proposed for analyzing unreplicated designs with possible outliers. Outliers can be a major impediment to valid interpretation of data from un...
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| Format: | Article |
| Language: | English |
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Foundation for Open Access Statistics
2008-03-01
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| Series: | Journal of Statistical Software |
| Subjects: | |
| Online Access: | http://www.jstatsoft.org/v25/i13/paper |
| _version_ | 1811270489041010688 |
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| author | John Lawson |
| author_facet | John Lawson |
| author_sort | John Lawson |
| collection | DOAJ |
| description | Many techniques have been proposed for judging the significance of effects in unreplicated 2^k and 2^(k-p) designs. However, relatively few methods have been proposed for analyzing unreplicated designs with possible outliers. Outliers can be a major impediment to valid interpretation of data from unreplicated designs. This paper presents SAS macros which automate a manual method for detecting an outlier and performing an analysis of data from an unreplicated 2^k and 2^(k-p) design when an outlier is present. This method was originally suggested by Cuthbert Daniel and is based on the normal or half normal plot of effects. This automated version was shown in simulation studies to perform better than other procedures proposed to do the same thing. |
| first_indexed | 2024-04-12T22:02:49Z |
| format | Article |
| id | doaj.art-54dff0cd575241c592ace76f06b72491 |
| institution | Directory Open Access Journal |
| issn | 1548-7660 |
| language | English |
| last_indexed | 2024-04-12T22:02:49Z |
| publishDate | 2008-03-01 |
| publisher | Foundation for Open Access Statistics |
| record_format | Article |
| series | Journal of Statistical Software |
| spelling | doaj.art-54dff0cd575241c592ace76f06b724912022-12-22T03:15:04ZengFoundation for Open Access StatisticsJournal of Statistical Software1548-76602008-03-012513SAS Macros for Analysis of Unreplicated 2^k and 2^(k-p) Designs with a Possible OutlierJohn LawsonMany techniques have been proposed for judging the significance of effects in unreplicated 2^k and 2^(k-p) designs. However, relatively few methods have been proposed for analyzing unreplicated designs with possible outliers. Outliers can be a major impediment to valid interpretation of data from unreplicated designs. This paper presents SAS macros which automate a manual method for detecting an outlier and performing an analysis of data from an unreplicated 2^k and 2^(k-p) design when an outlier is present. This method was originally suggested by Cuthbert Daniel and is based on the normal or half normal plot of effects. This automated version was shown in simulation studies to perform better than other procedures proposed to do the same thing.http://www.jstatsoft.org/v25/i13/papernormal plot of effectshalf normal plot of effectsSAS |
| spellingShingle | John Lawson SAS Macros for Analysis of Unreplicated 2^k and 2^(k-p) Designs with a Possible Outlier Journal of Statistical Software normal plot of effects half normal plot of effects SAS |
| title | SAS Macros for Analysis of Unreplicated 2^k and 2^(k-p) Designs with a Possible Outlier |
| title_full | SAS Macros for Analysis of Unreplicated 2^k and 2^(k-p) Designs with a Possible Outlier |
| title_fullStr | SAS Macros for Analysis of Unreplicated 2^k and 2^(k-p) Designs with a Possible Outlier |
| title_full_unstemmed | SAS Macros for Analysis of Unreplicated 2^k and 2^(k-p) Designs with a Possible Outlier |
| title_short | SAS Macros for Analysis of Unreplicated 2^k and 2^(k-p) Designs with a Possible Outlier |
| title_sort | sas macros for analysis of unreplicated 2 k and 2 k p designs with a possible outlier |
| topic | normal plot of effects half normal plot of effects SAS |
| url | http://www.jstatsoft.org/v25/i13/paper |
| work_keys_str_mv | AT johnlawson sasmacrosforanalysisofunreplicated2kand2kpdesignswithapossibleoutlier |