FeatureDb-class {GenomicFeatures} | R Documentation

## FeatureDb objects

### Description

The FeatureDb class is a generic container for storing genomic locations of an arbitrary type of genomic features.

See `?TxDb` for a container for storing transcript annotations.

See `?makeFeatureDbFromUCSC` for a convenient way to make FeatureDb objects from BioMart online resources.

### Methods

In the code snippets below, `x` is a FeatureDb object.

  `metadata(x)`: Return `x`'s metadata in a data frame.

### Author(s)

Marc Carlson

### See Also

- The TxDb class for storing transcript annotations.

- `makeFeatureDbFromUCSC` for a convenient way to make a FeatureDb object from UCSC online resources.

- `saveDb` and `loadDb` for saving and loading the database content of a FeatureDb object.

- `features` for how to extract genomic features from a FeatureDb object.

### Examples

    fdb_file <- system.file("extdata", "FeatureDb.sqlite",
                            package="GenomicFeatures")
    fdb <- loadDb(fdb_file)
    fdb

[Package GenomicFeatures version 1.40.1 Index]