Debug contrast errors in ANOVA-like models

Debug contrast errors in ANOVA-like models

Usage

debug_contr_error(dat, subset_vec = NULL)

Arguments

dat

A data frame of predictors.

subset_vec

Optional logical or numeric index vector used to subset rows before checks.

Value

A list with two elements:

nlevels

Integer vector giving the number of levels for each factor variable in dat.

levels

List of factor level labels for each factor variable in dat.

Examples

# \donttest{
dat <- data.frame(
  group = factor(rep(letters[1:3], each = 3)),
  score = rnorm(9)
)

debug_contr_error(dat = dat)
#> $nlevels
#> group 
#>     3 
#> 
#> $levels
#> $levels$group
#> [1] "a" "b" "c"
#> 
#> 
# }