从matplotlib AxesSubplot获取值

Question

我想从matplotlib.axes.AxesSubplot方法获取import pandas as pd import matplotlib.pyplot as plt serie = pd.Series([0.0,950.0,-70.0,812.0,0.0,-90.0,0.0,0.0,-90.0,0.0,-64.0,208.0,0.0,-90.0,0.0,-80.0,0.0,0.0,-80.0,-48.0,840.0,-100.0,190.0,130.0,-100.0,-100.0,0.0,-50.0,0.0,-100.0,-100.0,0.0,-90.0,0.0,-90.0,-90.0,63.0,-90.0,0.0,0.0,-90.0,-80.0,0.0,]) hist = serie.hist() # I want to get values of hist variable. 的值。 有没有办法这样做？我在列表中找不到该属性。

np.histogram

我知道我可以使用base64获得直方图值，但我想使用pandas hist方法。

Answer 1

正如xnx在评论中指出的那样，这并不像您使用plt.hist那样容易访问。但是，如果您真的想使用pandas hist函数，那么可以从添加到patches {{1}的hist中获取此信息当你致电AxesSubplot。

时

这是循环补丁的函数，并返回bin边和直方图计数：

serie.hist

以下是import pandas as pd import matplotlib.pyplot as plt serie = pd.Series([0.0,950.0,-70.0,812.0,0.0,-90.0,0.0,0.0,-90.0,0.0,-64.0,208.0,0.0,-90.0,0.0,-80.0,0.0,0.0,-80.0,-48.0,840.0,-100.0,190.0,130.0,-100.0,-100.0,0.0,-50.0,0.0,-100.0,-100.0,0.0,-90.0,0.0,-90.0,-90.0,63.0,-90.0,0.0,0.0,-90.0,-80.0,0.0,]) hist = serie.hist() def get_hist(ax): n,bins = [],[] for rect in ax.patches: ((x0, y0), (x1, y1)) = rect.get_bbox().get_points() n.append(y1-y0) bins.append(x0) # left edge of each bin bins.append(x1) # also get right edge of last bin return n,bins n, bins = get_hist(hist) print n print bins plt.show() 和n的输出：

bins

这是要检查的直方图：