The truth value of a Series is ambiguous.

Question

import pandas as pd
from math import radians,ceil, cos, sin, asin, sqrt
import matplotlib.pyplot as plt
import numpy as np
df=pd.read_excel('E:\数据\实验.xlsx')

X=[]
Y=[]
for i in range(0,len(df.num)):
    df1=df[df['num']==i+1]
    x=df1.lon
    y=df1.lat
    X.append(x)
    Y.append(y)


plt.scatter(X,Y)
i=2
while i<=1202:
    df1 = df[df['num'] == i]
    plt.axvline(x=df1.lon, color='b', linestyle='--')
    plt.axhline(y=df1.lat, color='r', linestyle='--')
    i=i+30
plt.show()

我只想取等差为30的点，就报错，萌新提问

Answer 1

应该是给的值和作比较的值的类型不同，参考一下：https://blog.csdn.net/sinat_26811377/article/details/101055557

如果对你有帮助，可以点击我这个回答右上方的【采纳】按钮，给我个采纳吗，谢谢