Internal function to -2LL
min2LL_4pno(N, J, Y, as, bs, gs, ss, theta)
Arguments
| N |
An int, which gives the number of observations. (> 0) |
| J |
An int, which gives the number of items. (> 0) |
| Y |
A N by J matrix of item responses. |
| as |
A vector of item discrimination parameters. |
| bs |
A vector of item threshold parameters. |
| gs |
A vector of item lower asymptote parameters. |
| ss |
A vector of item upper asymptote parameters. |
| theta |
A vector of prior thetas. |
Value
-2LL.
See also