matplotlib多条折线图，点散图

matplotlib折线图点散图
单折线

# coding=utf-8
from matplotlib import pyplot as plt

plt.rcParams['font.sans-serif'] = ['Microsoft YaHei']
x=range(11,31)
y=[1,0,1,1,2,4,3,2,3,4,4,5,6,5,4,3,3,1,1,1]
#设置图形大小
plt.figure(figsize=(20,8),dpi=80)
plt.plot(x,y)#画xy
#设置x轴刻度
_xtick_labels=["{}岁".format(i) for i in x]
plt.xticks(x,_xtick_labels)
plt.yticks(range(0,9))
#绘制网格
plt.grid(alpha=0.2)#透明度
#展示
plt.show()

多折线

# coding=utf-8
from matplotlib import pyplot as plt
plt.rcParams['font.sans-serif'] = ['Microsoft YaHei']
x=range(11,31)
y1=[1,0,1,1,2,4,3,2,3,4,4,5,6,5,4,3,3,1,1,1]
y2=[1,0,3,1,2,2,3,3,2,1,2,1,1,1,1,1,1,1,1,1]
#设置图形大小
plt.figure(figsize=(20,8),dpi=80)
plt.plot(x,y1,label="y1")#画xy
plt.plot(x,y2,label="y2")
#设置x轴刻度
_xtick_labels=["{}岁".format(i) for i in x]
plt.xticks(x,_xtick_labels)
plt.yticks(range(0,9))
#绘制网格
plt.grid(alpha=0.2)#透明度

#添加图例
plt.legend()
#展示
plt.show()

丰富一下

# coding=utf-8
from matplotlib import pyplot as plt
plt.rcParams['font.sans-serif'] = ['Microsoft YaHei']
x=range(11,31)
y1=[1,0,1,1,2,4,3,2,3,4,4,5,6,5,4,3,3,1,1,1]
y2=[1,0,3,1,2,2,3,3,2,1,2,1,1,1,1,1,1,1,1,1]
#设置图形大小
plt.figure(figsize=(20,8),dpi=80)
plt.plot(x,y1,label="y1",color="orange",linestyle=':',linewidth=10)#画xy
plt.plot(x,y2,label="y2",color="cyan",linestyle='--',linewidth=5)
# color颜色 linestyle线条风格 linewidth线条宽度
#设置x轴刻度
_xtick_labels=["{}岁".format(i) for i in x]
plt.xticks(x,_xtick_labels)
plt.yticks(range(0,9))
#绘制网格
plt.grid(alpha=0.2)#透明度

#添加图例,使图例在左边
plt.legend(loc="upper left")
#展示
plt.show()

电散图
气温和天气的变化规律

from matplotlib import pyplot as plt

plt.rcParams['font.sans-serif'] = ['Microsoft YaHei']
y_a=[11,17,16,11,12,11,12,6,6,7,8,9,12,15,14,17,18,21,16,17,20,14,15,15,15,19,21,22,23]
y_b=[26,26,28,19,21,17,16,19,18,20,20,19,22,23,17,20,21,20,22,15,11,5,13,17,10,11,13,12,13,6]

x_a=range(1,30)
x_b=range(41,71)
#设置图形大小
plt.figure(figsize=(20,8),dpi=80)

plt.scatter(x_a,y_a,label="三月份")
plt.scatter(x_b,y_b,label="10月份")
#调整x轴的刻度
_x=list(x_a)+list(x_b)
_xtick_labels=["3月{}日".format(i) for i in x_a]
_xtick_labels+=["10月{}日".format(i-50) for i in x_b]
plt.xticks(_x[::1],_xtick_labels[::1],rotation=45)
#添加图例
plt.legend(loc="upper left")

#添加描述信息
plt.xlabel("时间")
plt.ylabel("温度")
plt.title("标题")


plt.show()