biotite.structure.filter_intersection

biotite.structure.filter_intersection(array, intersect)

Filter all atoms of one array that exist also in another array.

An atom is defined as existent in the second array, if there is an atom in the second array that has the same annotation values in all categories that exists in both arrays.

Parameters

arrayAtomArray or AtomArrayStack

The array to be filtered.

intersectAtomArray

Atoms in array that also exists in intersect are filtered.

Returns

filterndarray, dtype=bool

This array is True for all indices in array, where the atom exists also in intersect.

Examples

Creating an atom array from atoms:

>>> array1 = AtomArray(length=5)
>>> array1.chain_id = np.array(["A","B","C","D","E"])
>>> array2 = AtomArray(length=3)
>>> array2.chain_id = np.array(["D","B","C"])
>>> array1 = array1[filter_intersection(array1, array2)]
>>> print(array1.chain_id)
['B' 'C' 'D']

Gallery

Superimposition of two protein structures

Superimposition of two protein structures