R: Class "count"

count-class {mi} | R Documentation

## Class "count"

### Description

The count class inherits from the `missing_variable-class` and is intended for count data. Aside from these facts, the rest of the documentation here is primarily directed toward developers.

### Objects from the Classes

Objects can be created that are of count class via the `missing_variable` generic function by specifying `type = "count"`

### Slots

The count class inherits from the missing_variable class and its `raw_data` slot must consist of nonnegative integers. Its default family is `quasipoisson` and its default `fit_model` method is a wrapper for `bayesglm`. The other possibility for the family is `poisson` but is not recommended due to its overly-restrictive nature.

### Author(s)

Ben Goodrich and Jonathan Kropko, for this version, based on earlier versions written by Yu-Sung Su, Masanao Yajima, Maria Grazia Pittau, Jennifer Hill, and Andrew Gelman.

### See Also

`missing_variable`, `continuous-class`, `positive-continuous-class`, `proportion-class`

### Examples

    # STEP 0: GET DATA
    data(CHAIN, package = "mi")

    # STEP 0.5 CREATE A missing_variable (you never need to actually do this)
    age <- missing_variable(as.integer(CHAIN$age), type = "count")
    show(age)

[Package mi version 1.0 Index]