我有一个excel文件，其中有2列标题为Lat和Lon，包含一些数据，例如：

Lat          Lon
36.19553° N 95.90918° W
36.19550° N 95.93592° W
36.20277° N 95.94484° W
36.20277° N 95.95381° W
36.22436° N 95.98023° W
36.21005° N 95.94487° W
36.21006° N 95.93594° W
35.99968° N 96.09681° W
35.97043° N 95.98949° W
35.96317° N 95.98951° W
35.99968° N 96.11459° W
35.99967° N 96.10568° W
35.96318° N 95.99839° W
35.96315° N 96.00728° W
35.99239° N 96.13247° W

我试图在excel文件中读取和分组的每一个是在0.00004的距离内的最后一个地方，无论是在拉特或离子列成一个组。它应该从第一行开始，并检查每一行寻找另一个是在0.00004的距离内，并插入一个数字开始一个列中称为'驱动器'为每个分组。
预期输出假定为：

Lat          Lon       Drive
0  36.19553  95.90918      1
1  36.19550  95.93592      1
2  36.20277  95.94484      2
3  36.20277  95.95381      2
4  36.22436  95.98023      3
5  36.21005  95.94487      2
6  36.21006  95.93594      1
7  35.99968  96.09681      4
8  35.97043  95.98949      5
9  35.96317  95.98951      5
10  35.99968  96.11459      4
11  35.99967  96.10568      4
12  35.96318  95.99839      5
13  35.96315  96.00728      5
14  35.99239  96.13247      6

我试了好几次都没有成功。

here is the latest attempt:
# Read the data into a pandas DataFrame
df = pd.read_excel('data.xlsx')

# Convert Lat and Lon to absolute values for easy comparison
df['Lat'] = df['Lat'].abs()
df['Lon'] = df['Lon'].abs()

# Initialize the counter and group column
counter = 1
df['Drive'] = 0

# Loop over the DataFrame rows
for i in range(len(df)):
    if df['Drive'][i] == 0:
        df.loc[(df['Lat'].between(df['Lat'][i] - 4, df['Lat'][i] + 4)) &
               (df['Lon'].between(df['Lon'][i] - 4, df['Lon'][i] + 4)), 'Drive'] = counter
        counter += 1

# Print the result
print(df)

abs（）的操作数类型错误："字符串"