read.betas {eiPack} | R Documentation

## Function to read in eiMD parameter chains saved to disk

### Description

In `ei.MD.bayes`, users have the option to save parameter chains for the unit-level betas to disk rather than returning them to the workspace. This function reconstructs the parameter chains by reading them back into R and producing either an array or an `mcmc` object.

### Usage

    read.betas(rows, columns, units, dir = NULL, ret.mcmc = TRUE)

### Arguments

`rows` | a character vector of the row marginals to be read back in
`columns` | a character vector of the column marginals to be read back in
`units` | a character of numeric vector with the units to be read back in
`dir` | an optional character string identifying the directory in which parameter chains are stored (defaults to `getwd`)
`ret.mcmc` | a logical value specifying whether to return the parameters as an `mcmc` object (defaults to `TRUE`)

### Value

If `ret.mcmc = TRUE`, an `mcmc` object with row names corresponding to the parameter chains. If `ret.mcmc = FALSE`, an array with dimensions named according to the selected `rows`, `columns`, and `units`.

### Author(s)

Olivia Lau <olivia.lau@post.harvard.edu>

### See Also

`ei.MD.bayes`,`mcmc`

[Package eiPack version 0.1-6 Index]