or Floor Data

Description Usage Arguments Value Examples

conduct an F star with for data with ceiling/floor effects

1	lw.f.star(data, formula, method_type)

`data`	a dataframe of data with ceiling/floor effects and corresponding group variables in wide format
`formula`	a formula denoting the dependent and independent variable, e.g., y~group
`method_type`	a character string specifying the preferred method type. "a" uses the original sample size and "b" uses after-truncation sample size.

`statistic`	the value of the Brown-Forsythe F star statistics
`p.value`	the p-value for the test
`est.f.squared`	effect size estimate in Cohen's f squared

dat=threeganova.sim(1000,.16,1)
dat[dat$group==1,3]=induce.cfe(0,.15,dat[dat$group==1,3])
lw.f.star(dat,y~group,"a") #using truncated n
lw.f.star(dat,y~group,"b") #using original n