Description Usage Arguments Value

View source: R/IRF_functions.R

Used to estimate theta in `est_2PL`

.

1 | ```
dlogL(resp, parms, theta)
``` |

`resp` |
a matrix or data.frame containing the binary item responses. |

`parms` |
a named list or data.frame with elements |

`theta` |
the latent trait. |

`length(theta)`

- vector of first derivatives of log-likelihood of 2PL, in theta.

peterhalpin/cirt documentation built on July 15, 2018, 12:42 p.m.

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