我正在尝试为我的实验数据拟合一条线。当我运行我通常使用的代码时,我得到了错误
回溯(最后一次调用):文件“/home/h/oscillator1.py”,第 21 行,斜率,截距,r_value = scipy.stats.linregress(data) ValueError: too many values to unpack (expected 3)
这是我的代码:
import matplotlib.pyplot as plt
import pandas as pd
import numpy as np
import scipy.stats
data = pd.read_csv("/home/h/Documents/oscillator1.csv", decimal='.')
plt.plot(
data['t (s)'], data['x (cm)'],
marker='+',
linestyle="None",
label="Data"
)
plt.xlabel("t [s]", fontsize=13)
plt.ylabel("x [cm]", fontsize=13)
plt.xticks(np.arange(0, 1300, step=150), size = 13)
plt.yticks(np.arange(-11, 2, step=1), size = 13)
plt.title("x vs t from torsion balance measurements", fontsize=16)
slope, intercept, r_value = scipy.stats.linregress(data)
print("slope = {}, intercept = {} and r-value = {}".format(slope, intercept, r_value**2))
plt.plot(data['t (s)'],
data['t (s)']*slope+intercept,
label="Linear regression"
)
plt.legend(fontsize=12) plt.show()
感谢您提供任何帮助。