estimate_helpers: Helper functions of Model Estimation
In xluo11/xxIRT: Item Response Theory and Computer-Based Testing
Description
miscellaneous helper functions for estimating IRT models
estimate_nr_iteration updates the parameters using the newton-raphson method
Usage
1
2
3
4
5
estimate_nr_iteration(param, free, dv, h_max, lr, bound)
model_polytomous_3dindex(u)
model_polytomous_3dresponse(u)
Arguments
param
the parameter being estimated
free
TRUE to freely estimate specific parameters
dv
the first and second derivatives
h_max
the maximum value of h
lr
the learning rate
bound
the lower and upper bounds of the parameter
u
the observed response, 2d matrix, values start from 0
xluo11/xxIRT documentation built on May 4, 2019, 1:24 p.m.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
Description
miscellaneous helper functions for estimating IRT models
estimate_nr_iteration updates the parameters using the newton-raphson method
Usage
1 2 3 4 5 | estimate_nr_iteration(param, free, dv, h_max, lr, bound)
model_polytomous_3dindex(u)
model_polytomous_3dresponse(u)
|
Arguments
param |
the parameter being estimated |
free |
TRUE to freely estimate specific parameters |
dv |
the first and second derivatives |
h_max |
the maximum value of h |
lr |
the learning rate |
bound |
the lower and upper bounds of the parameter |
u |
the observed response, 2d matrix, values start from 0 |
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
Embedding an R snippet on your website
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.