asExprSet {Ringo} | R Documentation

## converts a Ringo MAList into an ExpressionSet

### Description

Function to convert an object of class `MAList` into an object of class `ExpressionSet`. Note that the otherwise optional `targets` component is required in this case to generate the `phenoData` of the new `ExpressionSet`.

### Usage

    asExprSet(from, idColumn="PROBE_ID")

### Arguments

`from` | object of class `MAList` to convert into an `ExpressionSet`
`idColumn` | string; indicating which column of the `genes` data.frame of the MAList holds the identifier for reporters on the microarray. This column, after calling `make.names` on it, will make up the unique `featureNames` of the resulting `ExpressionSet`.

### Value

an object of class `ExpressionSet`

### Note

There is a more general function for converting MALists to ExpressionSets in the package `convert`. This function here is solely intended for converting Ringo-generated `MAList`s into `ExpressionSet`s.

### Author(s)

Joern Toedling

### See Also

`ExpressionSet`, `preprocess`

### Examples

      exDir <- system.file("exData",package="Ringo")
      exRG  <- readNimblegen("example_targets.txt","spottypes.txt",path=exDir)
      exMA  <- preprocess(exRG, "none", returnMAList=TRUE)
      exX   <- asExprSet(exMA)

[Package Ringo version 1.56.0 Index]