project.py 文件源码

def update_distances(self):
        """
        Calculate the distances between the observed series and the stresses.

        Returns
        -------
        distances: pandas.DataFrame
            pandas dataframe with the distances between the oseries (index)
            and the stresses (columns).

        """
        # Make sure these are values, even when actually objects.
        xo = pd.to_numeric(self.oseries.x)
        xt = pd.to_numeric(self.stresses.x)
        yo = pd.to_numeric(self.oseries.y)
        yt = pd.to_numeric(self.stresses.y)

        xh, xi = np.meshgrid(xt, xo)
        yh, yi = np.meshgrid(yt, yo)

        self.distances = pd.DataFrame(np.sqrt((xh - xi) ** 2 + (yh - yi) ** 2),
                                      index=self.oseries.index,
                                      columns=self.stresses.index)