estimate_helpers: Helper functions of Model Estimation
In xxIRT: Item Response Theory and Computer-Based Testing in R
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
xxIRT documentation built on May 1, 2019, 7:11 p.m.
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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.
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