python - 在 Matplotlib 中加载文本文件时出错

Question

我正在尝试使用 matplotlib 从文本文件(数据格式:“lat lon value”)中绘制数据，但我不断收到一个错误，我不知道如何解决。

数据示例:

42.88355    -76.78116   81
37.1417     -79.0164    81
36.65408    -83.21783   73
41.00928    -74.73628   69
42.29133    -73.71033   72
43.77714    -71.75598   83
44.41944    -72.01944   85
41.98525    -73.96409   82

temp.py 脚本代码:

from matplotlib.mlab import load
import matplotlib.pyplot as plt
import numpy as np
data = load("/home/weather/data/.../site_data")
# need to know nlons and nlats beforehand!
nlons = 8; nlats = 25
X = data[0::nlats,0]
Y = data[0:nlats,1]
# data is in nlons,nlats order in file, need to transpose
Z = data[:,2].reshape(nlons,nlats).transpose()
X,Y = np.meshgrid(X,Y)
CS = plt.contourf(X,Y,Z,20)
plt.show()

错误:

Traceback (most recent call last):
File "temp.py", line 1, in <module>
from matplotlib.mlab import load
ImportError: cannot import name load

Answer 1

看起来 matplotlib.mlab.load() 已经是 deprecated .尝试改用 np.loadtxt。