chrseparate: Separate a TxDb object based on a chromosome.
In IVAS: Identification of genetic Variants affecting Alternative Splicing

Description Usage Arguments Value Author(s) References See Also Examples

With the isActiveSeq method in GenomicFeatures package, this function filters the TxDb object in the GenomicFeatures package based on a single chromosome.

1	chrseparate(GTFdb = NULL, chrname = NULL)

`GTFdb`	The TxDb object in the GenomicFeatures package.
`chrname`	The chromosome number you would like to select from TxDb

This function returns the TxDb limited to the chromosome number that you want.

Seonggyun Han, Sangsoo Kim

Lawrence M, Huber W, Pages H, Aboyoun P, Carlson M, Gentleman R, Morgan M, and Carey V. Software for Computing and Annotating Genomic Ranges. PLoS Computational Biology, 9, e1003118. 2013.

isActiveSeq, seqinfo

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    sampleDB <- system.file("extdata", "sampleDB", package="IVAS")
    sample.Txdb <- loadDb(sampleDB)
    filtered.txdb <- chrseparate(sample.Txdb,19)