genomes (version 2.16.0)

ncbiNucleotide: NCBI Nucleotide database

Description

Search Entrez Nucleotide at NCBI and retrieve summary tables

Usage

ncbiNucleotide(term)

Arguments

term

Any valid combination of Entrez search terms or a vector of accessions numbers

Value

Details

Returns a summary from Entrez Nucleotide.

References

A description of the Entrez programming utilities is at http://eutils.ncbi.nlm.nih.gov/.

See Also

ncbiGenome

Examples

## Not run: 
# ncbiNucleotide("AL117189,AL109969,AL117211")[,1:6]
# 
# # Exclude Patents and Refseq 
# marb <- ncbiNucleotide( "Marburgvirus[ORGN] NOT gbdiv_pat[PROP] NOT srcdb_refseq[PROP]")
# head(marb)
# # two peaks in size distribution (partial and complete sequences)
# hist(marb$size, col="blue", br=30, main="Marburg virus sequences", xlab="Length (bp)")
# ## End(Not run)