Description Usage Arguments Value
Similar to M
, but for the second derivatives. Called by functions that compute second derivative of the log-likelihood.
1 | N(resp, parms, theta, obs = F)
|
resp |
a matrix or data.frame containing the binary item responses. |
parms |
a named list or data.frame with elements |
theta |
the latent trait. |
obs |
logical: should the observed value be returned? If not, the expected value is returned. |
dim(resp)
-matrix of multipliers.
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