diagnosis: A function to plot model diagnostics
In jvcasillas/ds4ling: Datasets and Functions developed for SPAN589: Data Science for Linguists

This function generates a series of plots that can be used to check some model assumptions in linear models.

1	diagnosis(mod)

`mod`	A model object
`diagnosis`	A function for plotting model diagnostics

The left panel shows residuals as a function of fitted values and is useful for checking homoskedasticity.

The middle panel plots a histogram of the residuals with a vertical discontinuous line that represents the mean.

The right panel provides a qq-plot of the residuals.

1 2	mod1 <- lm(mpg ~ drat, data = mtcars) diagnosis(mod1)

jvcasillas/ds4ling documentation built on April 8, 2021, 10:15 p.m.

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