reutils (version 0.2.1)

[,efetch,character,missing-method: EFetch accessors

Description

Extract XML nodes from an efetch object.

Usage

## S3 method for class 'efetch,character,missing':
[(x, i, j)
## S3 method for class 'efetch,character':
[[(x, i)

Arguments

x

An efetch object containing XML data.

i

An XPath expression specifying the XML nodes to extract.

j

Ignored.

Value

• An XML node set.

Examples

p <- efetch("195055", "protein", "gp", "xml")
p['//GBFeature[GBFeature_key="mat_peptide"]//GBQualifier_value']