def match(self, ra, dec, radius, maxmatch=<NUM_LIT:1>):
if self.convertToArray == True:<EOL><INDENT>from astrocalc.coords import coordinates_to_array<EOL>ra, dec = coordinates_to_array(<EOL>log=self.log,<EOL>ra=ra,<EOL>dec=dec<EOL>)<EOL><DEDENT>radius = numpy.array(radius, dtype='<STR_LIT>', ndmin=<NUM_LIT:1>, copy=False)<EOL>if ra.size != dec.size:<EOL><INDENT>raise ValueError("<STR_LIT>"<EOL>"<STR_LIT>" % (ra.size, dec.size))<EOL><DEDENT>if radius.size != <NUM_LIT:1> and radius.size != ra.size:<EOL><INDENT>raise ValueError("<STR_LIT>"<EOL>"<STR_LIT>" % (radius.size, ra.size))<EOL><DEDENT>return super(Matcher, self).match(ra, dec, radius, maxmatch, False)<EOL>
*match a corrdinate set against this Matcher object's coordinate set*

        **Key Arguments:**
            - ``ra`` -- list, numpy array or single ra value
            - ``dec`` -- --list, numpy array or single dec value (must match ra array length)
            - ``radius`` -- radius of circle in degrees
            - ``maxmatch`` -- maximum number of matches to return. Set to `0` to match all points. Default *1* (i.e. closest match)

        **Return:**
            - None

        **Usage:**

            Once we have initialised a Matcher coordinateSet object we can match other coordinate sets against it:

            .. code-block:: python

                twoArcsec = 2.0 / 3600.
                raList2 = [200.0, 200.0, 200.0, 175.23, 55.25]
                decList2 = [24.3 + 0.75 * twoArcsec, 24.3 + 0.25 * twoArcsec,
                    24.3 - 0.33 * twoArcsec, -28.25 + 0.58 * twoArcsec, 75.22]

                matchIndices1, matchIndices2, seps = coordinateSet.match(
                    ra=raList2,
                    dec=decList2,
                    radius=twoArcsec,
                    maxmatch=0
                )

                for m1, m2, s in zip(matchIndices1, matchIndices2, seps):
                    print raList1[m1], decList1[m1], " -> ", s * 3600., " arcsec -> ", raList2[m2], decList2[m2]

            Or to return just the nearest matches:

            .. code-block:: python

                matchIndices1, matchIndices2, seps = coordinateSet.match(
                    ra=raList2,
                    dec=decList2,
                    radius=twoArcsec,
                    maxmatch=1
                )

            Note from the print statement, you can index the arrays ``raList1``, ``decList1`` with the ``matchIndices1`` array values and  ``raList2``, ``decList2`` with the ``matchIndices2`` values.