matplotlib各种图的绘制

折线图

plt.plot(x,y)

散点图

plt.scatter(x,y)

条形图

from matplotlib import pyplot as plt
from matplotlib import font_manager
my_font = font_manager.FontProperties(fname = r'C:\Windows\Fonts\simhei.ttf')
a = ['政治','英语二','数学三','统计学']
b = [82,78,122,120]
plt.figure(figsize = (20,8),dpi = 80)
plt.bar(range(len(a)),b,width = 0.1)
plt.xticks(range(len(a)),a,fontproperties = my_font,rotation = 45,size = 20)
plt.yticks(size = 15)
plt.show()

横置条形图

#绘制横置条形图
from matplotlib import pyplot as plt
from matplotlib import font_manager
my_font = font_manager.FontProperties(fname = r'C:\Windows\Fonts\simhei.ttf')
a = ['政治','英语二','数学三','统计学']
b = [82,78,122,120]
plt.figure(figsize = (20,8),dpi = 80)
plt.barh(range(len(a)),b,height = 0.3,color = 'orange')
plt.yticks(range(len(a)),a,fontproperties = my_font,rotation = 45,size = 20)
plt.xticks(size = 15)
plt.grid(alpha = 0.8)
plt.show()

直方图

from matplotlib import pyplot as plt
from matplotlib import font_manager
a=[131,  98, 125, 131, 124, 139, 131, 117, 128, 108, 135, 138, 131, 102, 107, 114, 119, 128, 121, 142, 127, 130, 124, 101, 110, 116, 117, 110, 128, 128, 115,  99, 136, 126, 134,  95, 138, 117, 111,78, 132, 124, 113, 150, 110, 117,  86,  95, 144, 105, 126, 130,126, 130, 126, 116, 123, 106, 112, 138, 123,  86, 101,  99, 136,123, 117, 119, 105, 137, 123, 128, 125, 104, 109, 134, 125, 127,105, 120, 107, 129, 116, 108, 132, 103, 136, 118, 102, 120, 114,105, 115, 132, 145, 119, 121, 112, 139, 125, 138, 109, 132, 134,156, 106, 117, 127, 144, 139, 139, 119, 140,  83, 110, 102,123,107, 143, 115, 136, 118, 139, 123, 112, 118, 125, 109, 119, 133,112, 114, 122, 109, 106, 123, 116, 131, 127, 115, 118, 112, 135,115, 146, 137, 116, 103, 144,  83, 123, 111, 110, 111, 100, 154,136, 100, 118, 119, 133, 134, 106, 129, 126, 110, 111, 109, 141,120, 117, 106, 149, 122, 122, 110, 118, 127, 121, 114, 125, 126,114, 140, 103, 130, 141, 117, 106, 114, 121, 114, 133, 137,  92,121, 112, 146,  97, 137, 105,  98, 117, 112,  81,  97, 139, 113,134, 106, 144, 110, 137, 137, 111, 104, 117, 100, 111, 101, 110,105, 129, 137, 112, 120, 113, 133, 112,  83,  94, 146, 133, 101,131, 116, 111,  84, 137, 115, 122, 106, 144, 109, 123, 116, 111,111, 133, 150]
#计算组数
d = 3#组距为5
num_bins = (max(a)-min(b))//d
plt.figure(figsize = (20,8),dpi = 80)
plt.hist(a,num_bins)
#设置x轴的刻度
plt.xticks(range(min(a),max(a)+d,d))
plt.grid(alpha = 0.8)
plt.show()