Description Usage Arguments Examples
View source: R/itemperson_map.R
Draws an item-person map for the Rasch Model and its variants using item difficulty parameters and latent trait estimates.
1 | itemperson_map(x, y, k = 8, n = 10, ...)
|
x |
Item difficulty paramaters for the items |
y |
Latent trait (ability) estimates for persons |
k |
Number of classes when grouping items and persons |
n |
Number of persons represented by each X in the item-person map |
... |
Additional elements to pass to the plot function |
1 2 3 4 5 6 | ## Item-person map for an exam with 15 items and 500 examinees
set.seed(355)
difficulty <- rnorm(15)
names(difficulty) <- 1:15
ability <- rnorm(500)
itemperson_map(difficulty,ability,main="Item-Person Map", n=20)
|
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.