is.select: Is an Object of Class 'select'?

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

View source: R/is.select.R

Description

Checks whether its argument is an object of class ‘select’.

Usage

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Arguments

x

an R object to be tested.

Details

Tests if x is an object of class ‘select’, i.e. if x has a “class” attribute equal to select.

Value

TRUE if x is an object of class ‘select’ and FALSE otherwise

Author(s)

Julien Ide

See Also

atom.select

Examples

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# Read a PDB file
pdb <- read.pdb( system.file("examples/1hel.pdb", package="bio3d") )

# Print structure summary
atom.select(pdb)

# Select all C-alpha atoms with residues numbers between 43 and 54
ca.inds <- atom.select(pdb, "calpha", resno=43:54)
is.select(ca.inds)

bio3d documentation built on April 3, 2018, 9:05 a.m.