How to draw a line chart using python
Today I will teach you how to draw some linear patterns using python. Friends in need can refer to it.
Draw the simplest straight line graph
The code is as follows:
import numpy as np
import matplotlib.pyplot as plt
x=[0,1]
y=[0,1]
plt.figure()
plt.plot(x,y)
plt.savefig("easyplot.jpg")#x轴，y轴
x=[0,1]
y=[0,1]
#创建绘图对象
plt.figure()
#在当前绘图对象进行绘图（两个参数是x,y轴的数据）
plt.plot(x,y)
#保存图象
plt.savefig("easyplot.jpg")
import numpy as np
import matplotlib.pyplot as plt
x=[0,1]
y=[0,1]
plt.figure()
plt.plot(x,y)
plt.xlabel("time(s)")
plt.ylabel("value(m)")
plt.title("A simple plot")
plt.xlabel("time(s)") #X轴标签
plt.ylabel("value(m)") #Y轴标签
plt.title("A simple plot") #标题
# -*- coding: utf-8 -*- import numpy as np import matplotlib.pyplot as plt
x = np.linspace(0, 10, 1000) y = np.sin(x)
plt.figure(figsize=(8,4))
plt.plot(x,y,label="$sin(x)$",color="red",linewidth=2)
plt.xlabel("Time(s)")plt.ylabel("Volt")plt.title("PyPlot First Example")plt.ylim(-1.2,1.2)
plt.legend()
plt.show()
plt.savefig("sinx.jpg")
# -*- coding: utf-8 -*-
import numpy as np
import matplotlib.pyplot as plt
#X轴，Y轴数据
x = [0,1,2,3,4,5,6]
y = [0.3,0.4,2,5,3,4.5,4]
plt.figure(figsize=(8,4)) #创建绘图对象
plt.plot(x,y,"b--",linewidth=1) #在当前绘图对象绘图（X轴，Y轴，蓝色虚线，线宽度）
plt.xlabel("Time(s)") #X轴标签
plt.ylabel("Volt") #Y轴标签
plt.title("Line plot") #图标题
plt.show() #显示图
plt.savefig("line.jpg") #保存图
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