owspectra.py 文件源码

def add_curves(self, x, ys, addc=True):
        """ Add multiple curves with the same x domain. """
        if len(ys) > MAX_INSTANCES_DRAWN:
            sample_selection = random.Random(self.sample_seed).sample(range(len(ys)), MAX_INSTANCES_DRAWN)

            # with random selection also show at most MAX_INSTANCES_DRAW elements from the subset
            subset = set(np.where(self.subset_indices)[0])
            subset_to_show = subset - set(sample_selection)
            subset_additional = MAX_INSTANCES_DRAWN - (len(subset) - len(subset_to_show))
            if len(subset_to_show) > subset_additional:
                subset_to_show = random.Random(self.sample_seed).sample(subset_to_show, subset_additional)

            self.sampled_indices = sorted(sample_selection + list(subset_to_show))
            self.sampling = True
        else:
            self.sampled_indices = list(range(len(ys)))
        random.Random(self.sample_seed).shuffle(self.sampled_indices)  # for sequential classes#
        self.sampled_indices_inverse = {s: i for i, s in enumerate(self.sampled_indices)}
        ys = self.data.X[self.sampled_indices][:, self.data_xsind]
        self.curves.append((x, ys))
        for y in ys:
            c = pg.PlotCurveItem(x=x, y=y, pen=self.pen_normal[None])
            self.curves_cont.add_curve(c)
        self.curves_plotted = self.curves