owpolynomialregression.py 文件源码

def plot_scatter_points(self, x_data, y_data):
        if self.scatterplot_item:
            self.plotview.removeItem(self.scatterplot_item)
        self.n_points = len(x_data)
        self.scatterplot_item = pg.ScatterPlotItem(
            x=x_data, y=y_data, data=np.arange(self.n_points),
            symbol="o", size=10, pen=pg.mkPen(0.2), brush=pg.mkBrush(0.7),
            antialias=True)
        self.scatterplot_item.opts["useCache"] = False
        self.plotview.addItem(self.scatterplot_item)
        self.plotview.replot()