Package org.openscience.cdk.qsar.descriptors.molecular

Class BPolDescriptor

  • All Implemented Interfaces:
    IDescriptor, IMolecularDescriptor
    public class BPolDescriptor
extends AbstractMolecularDescriptor
implements IMolecularDescriptor
    Sum of the absolute value of the difference between atomic polarizabilities of all bonded atoms in the molecule (including implicit hydrogens) with polarizabilities taken from http://www.sunysccc.edu/academic/mst/ptable/p-table2.htm This descriptor assumes 2-centered bonds.
    Parameters for this descriptor:
    Name Default Description
    no parameters
    Returns a single value with name bpol.
    Author:
    mfe4
    Dictionary pointer(s):
    bpol in the QSAR.sf.net Descriptors Dictionary [qsar-descriptors:bpol]
    Source code:
    main
    Belongs to CDK module:
    qsarmolecular
    Created on:
    2004-11-13

    • Constructor Detail

      • BPolDescriptor

        public BPolDescriptor()
        Constructor for the APolDescriptor object

    • Method Detail

      • getSpecification

        public DescriptorSpecification getSpecification()
        Description copied from interface: IDescriptor
        Returns a IImplementationSpecification which specifies which descriptor is implemented by this class. These fields are used in the map:
        • Specification-Reference: refers to an entry in a unique dictionary
        • Implementation-Title: anything
        • Implementation-Identifier: a unique identifier for this version of this class
        • Implementation-Vendor: CDK, JOELib, or anything else
        Specified by:
        getSpecification in interface IDescriptor
        Returns:
        An object containing the descriptor specification

      • getDescriptorNames

        public String[] getDescriptorNames()
        Description copied from interface: IDescriptor
        Returns an array of names for each descriptor value calculated. Many descriptors return multiple values. In general it is useful for the descriptor to indicate the names for each value. In many cases, these names can be as simple as X1, X2, ..., XN where X is a prefix and 1, 2, ..., N are the indices. On the other hand it is also possible to return other arbitrary names, which should be documented in the Javadocs for the descriptor (e.g., the CPSA descriptor). Note that by default if a descriptor returns a single value (such as ALOGPDescriptor the return array will have a single element
        Specified by:
        getDescriptorNames in interface IDescriptor
        Returns:
        An array of descriptor names, equal in length to the number of descriptor calculated..

      • calculate

        public DescriptorValue calculate​(IAtomContainer container)
        This method calculate the sum of the absolute value of the difference between atomic polarizabilities of all bonded atoms in the molecule
        Specified by:
        calculate in interface IMolecularDescriptor
        Parameters:
        container - Parameter is the atom container.
        Returns:
        The sum of atomic polarizabilities

      • getDescriptorResultType

        public IDescriptorResult getDescriptorResultType()
        Returns the specific type of the DescriptorResult object. The return value from this method really indicates what type of result will be obtained from the DescriptorValue object. Note that the same result can be achieved by interrogating the DescriptorValue object; this method allows you to do the same thing, without actually calculating the descriptor.
        Specified by:
        getDescriptorResultType in interface IMolecularDescriptor
        Returns:
        an object that implements the IDescriptorResult interface indicating the actual type of values returned by the descriptor in the DescriptorValue object

      • getParameterNames

        public String[] getParameterNames()
        Gets the parameterNames attribute of the BPolDescriptor object
        Specified by:
        getParameterNames in interface IDescriptor
        Returns:
        The parameterNames value

      • getParameterType

        public Object getParameterType​(String name)
        Gets the parameterType attribute of the BPolDescriptor object
        Specified by:
        getParameterType in interface IDescriptor
        Parameters:
        name - Description of the Parameter
        Returns:
        The parameterType value

      • initialise

        public void initialise​(IChemObjectBuilder builder)
        Default implementation of initialise allows optional override.
        Specified by:
        initialise in interface IDescriptor
        Parameters:
        builder - chem object build