dpv: Draw plausible values

Description Usage Arguments Value Author(s) See Also Examples

View source: R/ability.R

Description

Draws (by rejection sampling) plausible values from the posterior distribution of ability

Usage

1
dpv(resp, ip, mu = 0, sigma = 1, n = 5)

Arguments

resp

A matrix of responses: persons as rows, items as columns, entries are either 0 or 1, no missing data

ip

Item parameters: the object returned by est.

mu

Mean of the apriori distribution. Default is 0.

sigma

Standard deviation of the apriori distribution. Ignored when method="ML". Default is 1.

n

The number of plausible values to draw for each person (default is 5).

Value

A matrix with n columns

Author(s)

Ivailo Partchev

See Also

mlebme, eap

Examples

1
plval <- dpv(resp=Scored, ip=Scored2pl)

irtoys documentation built on May 2, 2019, 3:03 a.m.