Python 如何将标签添加到箱线图（pylab）
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How to add labels to a boxplot figure (pylab)
提问by mkpappu
This is a pretty basic question I'm sure but I cannot seem to find the right code. There is my code for the boxplot I am creating. I would like to label the axes and have a title.
我确定这是一个非常基本的问题，但我似乎找不到正确的代码。我正在创建的箱线图有我的代码。我想标记轴并有一个标题。
from pylab import *
import numpy
raw_data = list(numpy.genfromtxt(filename, delimiter=','))
print raw_data
figure()
boxplot(raw_data,1)
savefig('testfigure.pdf')
I have tried pylab.xlabel('x')and plt.xlable('x')but those do not work...? Do they not work for boxplots or have I just got it wrong about those lines working?
我试过了pylab.xlabel('x')，plt.xlable('x')但那些不起作用......？它们是否不适用于箱线图，还是我对这些线的工作有误解？
采纳答案by The Brofessor
Try this:
尝试这个：
import matplotlib.pyplot as plt
from pylab import *
# fake up some data
spread= rand(50) * 100
center = ones(25) * 50
flier_high = rand(10) * 100 + 100
flier_low = rand(10) * -100
data =concatenate((spread, center, flier_high, flier_low), 0)
# figure related code
fig = plt.figure()
fig.suptitle('bold figure suptitle', fontsize=14, fontweight='bold')
ax = fig.add_subplot(111)
ax.boxplot(data)
ax.set_title('axes title')
ax.set_xlabel('xlabel')
ax.set_ylabel('ylabel')
plt.show()
EDIT: Picture
编辑：图片
回答by tnknepp
I would recommend explicitly defining your figure window and plot.
我建议明确定义您的图形窗口和绘图。
from pylab import *
import numpy as np
fig = figure(figsize=(4,4)) # define the figure window
ax = fig.add_subplot(111) # define the axis
ax.boxplot(raw_data,1) # make your boxplot
# add axis texts
ax.set_xlabel('X-label', fontsize=8)
ax.set_ylabel('Y-label', fontsize=8)
ax.set_title('I AM BOXPLOT', fontsize=10)
# format axes
ax.set_xlim([0,100])
ax.set_xticks( np.arange(0,101,10), minor=False)
ax.set_xticks( np.arange(0,100,5), minor=True)
# if you wish to explicitly set tick labels
ax.set_xticklabels( np.arange(0,101,10), fontsize=8)
# if you wish to explicitly set actual tick parameters
ax.tick_params(axis='both',which='major',direction='in',length=4,width=2,labelsize=8)
ax.tick_params(axis='both',which='minor',direction='in',length=2,width=1.5)
# and so on...you can do the same for the y-axis.
# You have quite a lot of control over the axes this way.
another tip, when saving set bbox_inches to 'tight' so you don't cut off your labels
另一个提示，将 bbox_inches 设置为“tight”时，这样您就不会切断标签
savefig('fig_title.jpg', bbox_inches='tight', dpi=500)
