def qhalfx(self):
        """get the half normal matrix attribute.  Create the attribute if
        it has not yet been created

        Returns
        -------
        qhalfx : pyemu.Matrix

        """
        if self.__qhalfx is None:
            self.log("qhalfx")
            self.__qhalfx = self.qhalf * self.jco
            self.log("qhalfx")
        return self.__qhalfx
def qhalfx ( self ) : if self . __qhalfx is None : self . log ( "qhalfx" ) self . __qhalfx = self . qhalf * self . jco self . log ( "qhalfx" ) return self . __qhalfx
get the half normal matrix attribute.  Create the attribute if
        it has not yet been created

        Returns
        -------
        qhalfx : pyemu.Matrix