ShowTrace.py 文件源码

def trendLine(self, axis_choose=None):
        stable_sec= int(self.record_sec_le.text())
        stable_count = int(stable_sec * (1/0.007))

        if axis_choose:
            axis = axis_choose
        else:
            axis = str(self.axis_combobox.currentText())

        x = self.raw_data['time'][:stable_count]
        y = self.raw_data[axis][:stable_count]
        coefficients = np.polyfit(x,y,1)
        p = np.poly1d(coefficients)
        coefficient_of_dermination = r2_score(y, p(x))

        self.trendLine_content1_label.setText("Trendline: " + str(p))
        self.trendLine_content2_label.setText("R: " + str(coefficient_of_dermination))
        return coefficients