Is an Object of Class ‘pdb(s)’?

Usage

is.pdb(x) is.pdbs(x)

Arguments

x
an R object.

Description

Checks whether its argument is an object of class ‘pdb’ or ‘pdbs’.

Details

Tests if the object ‘x’ is of class ‘pdb’ (is.pdb) or ‘pdbs’ (is.pdbs), i.e. if ‘x’ has a “class” attribute equal to pdb or pdbs.

Value

TRUE if x is an object of class ‘pdb(s)’ and FALSE otherwise

Examples

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