7. Analysis of variance
Let's now turn to the case of discrete factors with more than
two levels. To study them, we need to adopt a technique well known
to statisticians: analysis of variance or ANOVA (see
7.1 Defining the effect of a factor
Let's take the example of a "person" factor. If there are three levels of person, this means there are three individuals: James, Louis and Peter. If they set up the same analysis method and all conditions are the same for a determination made by each of them, they will obtain three slightly different results: y...
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Analysis of variance
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