R grm()

1 개요

R grm()

• "Graded Response Model - Polytomous IRT → 등급반응모형 - 다분 IRT"

library(ltm)
grm(Science[c(1,3,4,7)])

library(ltm)
grm(Science[c(1,3,4,7)], constrained = TRUE)

library(ltm)
grm(Environment)

2 같이 보기

• R coef.grm()
• R fitted.grm()
• R summary.grm()
• R anova.grm()
• R plot.grm()
• R vcov.grm()
• R margins()
• R factor.scores()

3 참고

• https://www.rdocumentation.org/packages/ltm/versions/1.1-1/topics/grm