ols_test_normality {olsrr}

Test for normality

Description

Test for detecting violation of normality assumption.

Usage

ols_test_normality(y, ...)

## S3 method for class 'lm'
ols_test_normality(y, ...)

Arguments

y

A numeric vector or an object of class lm.

...

Other arguments.

Value

ols_test_normality returns an object of class "ols_test_normality". An object of class "ols_test_normality" is a list containing the following components:

kolmogorv

kolmogorv smirnov statistic

shapiro

shapiro wilk statistic

cramer

cramer von mises statistic

anderson

anderson darling statistic

See Also

Other residual diagnostics: ols_plot_resid_box(), ols_plot_resid_fit(), ols_plot_resid_hist(), ols_plot_resid_qq(), ols_test_correlation()

Examples

model <- lm(mpg ~ disp + hp + wt + qsec, data = mtcars)
ols_test_normality(model)