groupings {RNAdecay} | R Documentation

## Combinatorial groups matrix generator

### Description

Generates a combinatorial grouping matrix based on the `decaydata` data.frame.

### Usage

    groupings(decaydata)

### Arguments

`decaydata` | a data.frame with column names: 'geneID','treatment','t.decay','rep','value' with classes `factor`, `factor`, `numeric`, `factor`, `numeric`

### Details

The resulting matrix of indices is used to constrain treatment alphas or treatment betas in combination. For example, in one model, treatment alphas might be allowed to vary independently (gp1), but the beta models might be constrained to be equal for some treatments indicated by haveing the same index number (other gp).

### Value

returns a matrix of equivalence group indicies based on the number of levels in the 'treatment' column (max of 4).

### Examples

    groupings(data.frame(geneID=paste0('gene',1:4),treatment=as.factor(paste0('treat',1:4)),
                         t.decay=0:3,rep=rep('rep1'),value=c(1,0.5,0.25,0.12)))

[Package RNAdecay version 1.3.1 Index]