stdmod (version 0.2.11)

update.std_selected: The 'update' Method for a 'std_selected' Class Object

Description

This should be used only to update the call to lm(), not to the call to std_selected() or std_selected_boot().

Usage

# S3 method for std_selected
update(object, formula., ..., evaluate = TRUE)

Value

If evaluate = TRUE, it returns the updated fitted object, otherwise, the updated call.

Arguments

object

The output of the class std_selected().

formula.

Changes to the formula.

...

Optional arguments to be changed.

evaluate

Whether the call will be evaluated.

Author

Shu Fai Cheung https://orcid.org/0000-0002-9871-9448

Details

Although supported, it is not recommended to update an analysis processed by std_selected() or std_selected_boot(). It is recommended to call lm() again and pass the output to std_selected() or std_selected_boot().

Examples

# Load a sample data set

dat <- test_x_1_w_1_v_1_cat1_n_500
head(dat)

# Do a moderated regression by lm
lm_raw <- lm(dv ~ iv*mod + v1 + cat1, dat)
summary(lm_raw)

# Standardize all variables except for categorical variables.
# Interaction terms are formed after standardization.
lm_std <- std_selected(lm_raw, to_scale = ~ .,
                               to_center = ~ .)
summary(lm_std)

# Update the model
lm_std2 <- update(lm_std, . ~ . - v1)
summary(lm_std2)