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Valore “nascosto” della variabile categoriale della regressione lineare
Questo è solo un esempio che ho riscontrato più volte, quindi non ho dati di esempio. Esecuzione di un modello di regressione lineare in R: a.lm = lm(Y ~ x1 + x2) x1è una variabile continua. x2è categorico e ha tre valori, ad esempio "Basso", "Medio" e "Alto". Tuttavia, l'output …
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