featureData {Biobase} | R Documentation

## Retrieve information on features recorded in eSet-derived classes.

### Description

These generic functions access feature data (experiment specific information about features) and feature meta-data (e.g., descriptions of feature covariates).

### Usage

    featureData(object)
    featureData(object) <- value
    fData(object)
    fData(object) <- value
    fvarLabels(object)
    fvarLabels(object) <- value
    fvarMetadata(object)
    fvarMetadata(object) <- value

### Arguments

`object` | Object, possibly derived from `eSet-class` or `AnnotatedDataFrame-class`.
`value` | Value to be assigned to corresponding object.

### Value

`featureData` returns an object containing information on both variable values and variable meta-data. `fvarLabels` returns a character vector of measured variable names. `fData` returns a data frame with features as rows, variables as columns. `fvarMetadata` returns a data frame with variable names as rows, description tags (e.g., unit of measurement) as columns.

### Author(s)

Biocore

### See Also

`eSet`, `ExpressionSet`

[Package Biobase version 2.2.2 Index]