def gini(self):
        """
        geo.gini()

        Return computed Gini coefficient.
        """
        if self.count()>1:
            xsort = sorted(self.raster.data[self.raster.mask == False].flatten()) # increasing order
            y = np.cumsum(xsort)
            B = sum(y) / (y[-1] * len(xsort))
            return 1 + 1./len(xsort) - 2*B
        else:
            return 1
def gini ( self ) : if self . count ( ) > 1 : xsort = sorted ( self . raster . data [ self . raster . mask == False ] . flatten ( ) ) y = np . cumsum ( xsort ) B = sum ( y ) / ( y [ - 1 ] * len ( xsort ) ) return 1 + 1. / len ( xsort ) - 2 * B else : return 1
geo.gini()

        Return computed Gini coefficient.