Open AccessThe application of orthogonal contrasts to determine homogeneous groups
Author(s) -
Z. Laudański,
Dariusz R. Mańkowski,
Leszek Sieczko,
Monika Janaszek-Mańkowska
Publication year - 2021
Publication title -
plant breeding and seed science
Language(s) - English
Resource type - Journals
eISSN - 2083-599X
pISSN - 1429-3862
DOI - 10.37317/pbss-2021-0003
Subject(s) - homogeneous , variance (accounting) , variable (mathematics) , factorial , mathematics , statistics , factorial experiment , biology , biological system , artificial intelligence , computer science , combinatorics , mathematical analysis , accounting , business
The paper presents a modified approach to analysis of data obtained from experiments carried out according to classical factorial designs. Four examples were discussed in order to present details of proposed method. Modification of the analysis of variance presented here enables more effective use of information on how studied factors affect the means of dependent variable. The specificity of this approach is based on alternative multiple comparison procedure incorporating orthogonal contrasts to determine homogeneous groups.