Transcription of Chapter 440 Discriminant Analysis - Sample Size Software
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Chapter 440 Discriminant Analysis - Sample Size Software
NCSS Statistical Software 440-1 NCSS, LLC. All Rights Reserved. Chapter 440 Discriminant Analysis Introduction Discriminant Analysis finds a set of prediction equations based on independent variables that are used to classify individuals into groups. There are two possible objectives in a Discriminant Analysis : finding a predictive equation for classifying new individuals or interpreting the predictive equation to better understand the relationships that may exist among the variables. In many ways, Discriminant Analysis parallels multiple regression Analysis .
Unequal group size does not influence the direct solution of the discriminant analysis problem. However, unequal group size can cause subtle changes during the classification phase. Normally, the sampling frequency of each group (the proportion of the total sample that belongs to a particular group) is used during the classification stage.
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