R: Appends specified break to the data

appendbreak {mice} | R Documentation

## Appends specified break to the data

### Description

A custom function to insert rows in long data with new pseudo-observations that are being done on the specified break ages. There should be a column called `first` in `data` with logical data that codes whether the current row is the first for subject `id`. Furthermore, the function assumes that columns `age`, `occ`, `hgt.z`, `wgt.z` and `bmi.z` are available. This function is used on the `tbc` data in FIMD chapter 9. Check that out to see it in action.

### Usage

    appendbreak(data, brk, warp.model = warp.model, id = NULL, typ = "pred")

### Arguments

`data` | A data frame in the long long format
`brk` | A vector of break ages
`warp.model` | A time warping model
`id` | The subject identifier
`typ` | Label to signal that this is a newly added observation

### Value

A long data frame with additional rows for the break ages

[Package mice version 3.12.0 Index]