bclca {ldsa} | R Documentation |

## Fit a Bayesian Confirmatory Latent Class Model

### Description

Fits a Bayesian confirmatory latent class model to the binary matrix `y`

, with classes as specified in the rows of `z`

.

### Usage

bclca(y, z, em.prior = c(1, 9), ep.prior = c(1, 9), phi = 1,
err.model = c("nonperverse", "beta"), draws = 1000,
burnin = 5000, thin = 100, x.geoparm = 1/10,
sigma.ang = 0.01, sigma.r = 0.01, BF.pw = 0.01,
BF.p4bound = 1.5)

### Arguments

`y` |
a binary matrix whose rows contain observations and whose columns contain variables. Missing values are permitted. |

`z` |
a binary matrix whose rows contain the postulated latent class states. |

`em.prior` |
priors for the false negative rates (if `err.model=="beta"` ). |

`ep.prior` |
priors for the false positive rates (if `err.model=="beta"` ). |

`phi` |
priors for the latent class probabilities. |

`err.model` |
error model to employ. Set to `"nonperverse"` for uniform non-perverse priors, or `"beta"` for independent beta priors. |

`draws` |
number of posterior draws to take. |

`burnin` |
number of burn-in draws to take (and discard). |

`thin` |
number of iterations to take and discard between draws. |

`x.geoparm` |
geometric parameter for the proposal distribution on *x*. |

`sigma.ang` |
standard deviation for the angular proposal distribution on the error parameters (if `err.model=="nonperverse"` ). |

`sigma.r` |
standard deviation for the radial proposal distribution on the error parameters (if `err.model=="nonperverse"` ). |

`BF.pw` |
when multiplied by `draws` , the number of “virtual” prior draws to use when computing Raftery's *p_4* estimator of the integrated likelihood. |

`BF.p4bound` |
the upper bound to use when searching for Raftery's *p_4* estimator, as a multiple of the harmonic mean estimate of the integrated likelihood. |

### Details

~~ If necessary, more details than the description above ~~

### Value

~Describe the value returned
If it is a LIST, use

`comp1 ` |
Description of 'comp1' |

`comp2 ` |
Description of 'comp2' |

...

### Author(s)

Carter T. Butts buttsc@uci.edu

### See Also

~~objects to See Also as `help`

, ~~~

[Package

*ldsa* version 0.1-2

Index]