Orthogonal contrasts: definitions and concepts
The single degree of freedom of orthogonal contrasts is a useful technique for the analysis of experimental data and helpful in obtaining estimates of main, nested and interaction effects, for mean comparisons between groups of data and in obtaining specific residuals. Furthermore, the application o...
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Format: | Article |
Language: | English |
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Universidade de São Paulo
2004-02-01
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Series: | Scientia Agricola |
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Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000100020&tlng=en |
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author | Maria Cristina Stolf Nogueira |
author_facet | Maria Cristina Stolf Nogueira |
author_sort | Maria Cristina Stolf Nogueira |
collection | DOAJ |
description | The single degree of freedom of orthogonal contrasts is a useful technique for the analysis of experimental data and helpful in obtaining estimates of main, nested and interaction effects, for mean comparisons between groups of data and in obtaining specific residuals. Furthermore, the application of orthogonal contrasts is an alternative way of doing statistical analysis on data from non-conventional experiments, whithout a definite structure. To justify its application, an extensive review is made on the definitions and concepts involving contrasts. |
first_indexed | 2024-04-11T16:54:29Z |
format | Article |
id | doaj.art-d9266a94d180402bb26893c8d55f0f85 |
institution | Directory Open Access Journal |
issn | 1678-992X |
language | English |
last_indexed | 2024-04-11T16:54:29Z |
publishDate | 2004-02-01 |
publisher | Universidade de São Paulo |
record_format | Article |
series | Scientia Agricola |
spelling | doaj.art-d9266a94d180402bb26893c8d55f0f852022-12-22T04:13:18ZengUniversidade de São PauloScientia Agricola1678-992X2004-02-01611118124Orthogonal contrasts: definitions and conceptsMaria Cristina Stolf Nogueira0USPThe single degree of freedom of orthogonal contrasts is a useful technique for the analysis of experimental data and helpful in obtaining estimates of main, nested and interaction effects, for mean comparisons between groups of data and in obtaining specific residuals. Furthermore, the application of orthogonal contrasts is an alternative way of doing statistical analysis on data from non-conventional experiments, whithout a definite structure. To justify its application, an extensive review is made on the definitions and concepts involving contrasts.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000100020&tlng=enanalysis of variancepartition of sum of squaresexperiments with additional treatments |
spellingShingle | Maria Cristina Stolf Nogueira Orthogonal contrasts: definitions and concepts Scientia Agricola analysis of variance partition of sum of squares experiments with additional treatments |
title | Orthogonal contrasts: definitions and concepts |
title_full | Orthogonal contrasts: definitions and concepts |
title_fullStr | Orthogonal contrasts: definitions and concepts |
title_full_unstemmed | Orthogonal contrasts: definitions and concepts |
title_short | Orthogonal contrasts: definitions and concepts |
title_sort | orthogonal contrasts definitions and concepts |
topic | analysis of variance partition of sum of squares experiments with additional treatments |
url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000100020&tlng=en |
work_keys_str_mv | AT mariacristinastolfnogueira orthogonalcontrastsdefinitionsandconcepts |