一：折线图的绘制
#encoding=utf-8import matplotlib.pyplot as pltplt.rcParams['font.sans-serif'] = ['Arial Unicode MS']#折线图#x = ["随机森林","贝叶斯","逻辑回归","深度学习","机器学习","数据挖掘"]y = [56.5,55.4,53.1,54.5,54.3,52.9]#线1的纵坐标plt.plot(x,y,'s-',color = 'r',label="ATT-RLSTM")#s-:方形plt.xlabel("region length")#横坐标名字plt.ylabel("accuracy")#纵坐标名字plt.legend(loc = "best")#图例for a, b in zip(x, y):plt.text(a, b, b, ha='center', va='bottom', fontsize=20)plt.show()
是利用python绘制折线图，并且折线图的横坐标是汉字/字符串，折线图上面的点还带有数据的值
1.由于横坐标是汉字，我们需要一些字体，在Mac中，先看系统自带那些字体，然后使用语句
plt.rcParams['font.sans-serif'] = ['Arial Unicode MS']
这样就可以解决字体乱码问题。
2.为了让图形更加直观，我们需要在折线上面标出数据
for a, b in zip(x, y):
plt.text(a, b, b, ha='center', va='bottom', fontsize=20)
二：柱状图的绘制（指数级坐标轴）
# -*- coding:utf-8 -*-import pandas as pdimport numpy as npimport csvimport mathimport matplotlibimport matplotlib.pyplot as pltplt.rcParams['font.sans-serif'] = ['Arial Unicode MS']#matplotlib.rcParams['font.sans-serif'] = ['SimHei'] # 用黑体显示中文x = []y = []x=[3, 4, 5, 6]y=[31164, 15611, 11401, 6570,]print(x)print(y)plt.axes(yscale = "log")plt.bar(x=x, height=y)plt.xlabel("Lengths of sequences")plt.ylabel("Number of learners")plt.xticks(rotation=45)plt.savefig("count.png")plt.show()print("end")
指数级坐标轴
plt.axes(yscale = "log")
