bio3d (version 2.1-2)

is.select: Is an Object of Class select?

Description

Checks whether its argument is an object of class select.

Usage

is.select(x)

Arguments

x

an R object to be tested.

Value

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

Details

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

See Also

atom.select

Examples

# 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)