The log-linear models are most used to catagorical data analysis. The catagorical scale is thefunction transformation value form forth scale measured of observation : nominal, ordinal, ratioand interval. For the data analysis to trivariates observation of categorical scale is focus to createthe models with proof for interaction the factor in the models to 2-factor or 3-factor withgoodness-of-fit-test by G2 models.
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