delimtools (version 0.2.0)

drop_sequences: Remove Sequences of a DNAbin list object

Description

drop_sequences() removes sequences of a FASTA file by its names.

Usage

drop_sequences(dna, identifier, drop = TRUE)

Value

an object of class DNAbin.

Arguments

dna

a DNAbin list object.

identifier

a character vector containing sequence names.

drop

Logical. If TRUE, sequence names in identifier will be dropped from dna. If FALSE, sequence names absent in identifier will be dropped instead.

Author

Pedro S. Bittencourt

Details

drop_sequences() relies on exact match between sequence names within a fasta file and identifier argument.

Examples

# Create a vector of sequence names to drop or keep.
identifier <- names(geophagus)[1:3]

# Remove sequences listed in identifier
drop_sequences(geophagus, identifier, drop = TRUE)

# Remove sequences not listed in identifier
drop_sequences(geophagus, identifier, drop = FALSE)