cryst1(...) "cryst1"(abc, abg = c(90, 90, 90), sgroup = "P1", ...) is.cryst1(x)
cryst1returns a list of class cryst1 with the following components:
is.Cryst1returns TRUE if
xis an object of class cryst1 and FALSE otherwise.
cryst1is a generic function to create objects of class cryst1. The purpose of this class is to store CRYST1 records from PDB files which contain the unit cell parameters and the name of the space group of a molecular system stored in a PDB file. The default method of the
cryst1function create an object of class cryst1 from its different components, i.e.:
sgroup. At least
abchas to be specified.
is.cryst1 tests if an object of class cryst1, i.e. if it has a class attribute equal to