egquery: egquery - performing a global Entrez search

Description Usage Arguments Details Value Examples

Description

egquery retrieves the number of records in all Entrez databases for a single text query.

Usage

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egquery(term)

Arguments

term

A valid Entrez text query.

Details

See the official online documentation for NCBIs EUtilities for additional information.

Value

An egquery object.

Examples

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## Determine the number of records for mouse in Entrez.
e <- egquery("mouse[orgn]")
e

Example output

Warning: CurlError: Failed to connect to eutils.ncbi.nlm.nih.gov port 443: Connection refused
Object of class 'egquery' 
[1] "CurlError: Failed to connect to eutils.ncbi.nlm.nih.gov port 443: Connection refused"

reutils documentation built on May 1, 2019, 9:15 p.m.