inst/doc/influential-observations-diagnostics.R

In api2lm: Functions and Data Sets for the Book "A Progressive Introduction to Linear Models"

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library(api2lm)

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data(home_sales, package = "api2lm")

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lmod <- lm(price ~ ., data = home_sales)
coef(lmod)

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outlier_plot(lmod, id_n = 2)

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outlier_test(lmod)

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leverage_plot(lmod)

## ---- fig.height=6, fig.width=6-----------------------------------------------
dfbetas_plot(lmod, id_n = 2,
             regressors = ~ bedrooms + bathrooms + sqft_living + sqft_lot)

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dffits_plot(lmod, id_n = 3)

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cooks_plot(lmod, id_n = 3)

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influence_plot(lmod)