Man pages for IRTpp
Estimating IRT Parameters using the IRT Methodology
| abilityinterface | @name abilityinterface @param zita_par @param data @param... |
| alpha.c | Cronbach-Mesbah Curve |
| alpha.cronbach | Cronbach's alpha |
| an.parallel | Parallel Analysis |
| autoapply | Autoapply |
| biserial.cor | Biserial Correlation |
| check.model | model verification |
| checkModel | checkModel |
| collapseCells | Collapses Cells |
| eapinterface | eapinterface @param zita_par - @param dat - @param e_model -... |
| full.pattern.expand | Full expansion of patterns |
| gg | Probability for envelopes |
| gutt | Guttman's Lambda |
| indexPat | Index pattern |
| individual.traits | Estimate the latent traits. |
| information | Test or Item information |
| irtpp | Estimate a test item parameters. |
| irtpp.model | Valid model |
| irtpp.models | Available models |
| irtpp.p | Probability function for all models. |
| IRTpp-package | IRTpp : Item Response Theory Implemented in R and Cpp |
| llikm | Loglik in stem M |
| loglik | LogLikelihood of a IRT model |
| loglik.f | LogLikelihood of a IRT model |
| mapinterface | mapinterface @param zita_par - @param dat - @param e_model -... |
| model.transform | Model transformations |
| normalize | Normalize a vector |
| orlando_itemf | Orlando's statistic |
| parameter.list | Parameter list form |
| parameter.matrix | Parameter matrix form |
| parameters.initialize | parameters.initialize |
| pattern.expand | Expansion of patterns |
| pattern.freqs | Frequencies for the expanded pattern matrix |
| phi | Phi coefficient of correlation |
| plotevenlope | Confidence bands |
| polyserial.cor | Polyserial correlation |
| print.sentence | Print Sentence, Helper function Prints different strings... |
| prob | Probability multidimensional case |
| prob.2pl | 2PL fast probability function |
| prob.3pl | 3PL fast probability function |
| probability.1pl | 1PL probability function |
| probability.2pl | 2PL probability function |
| probability.3pl | 3PL probability function |
| rtnorm | Truncated normal simulation |
| SimulateItemParameters | Simulates item parameters for UIRT models. |
| simulateTest | Simulates a test |
| simulateTest.file | This function simulates tests according to a IRT model. |
| simulateTestMD | Simulate test Multidimensional |
| s_ss | Calculates the likelihoods. |
| testmulti | Multidimensional test |
| test.plot | Plot a test or an item. |
| ua | Undefined assignment, Helper function |
| uirtestimate | uirtestimate |
| x2 | Statistical x2. |
| Yule | Yule coefficient of correlation |
| z3_itemf | Z3 statistic. |
| z3_personf | Z3 Person fit statistic |
