import numpy as np
import matplotlib.pyplot as plt
import os #導(dǎo)入os庫(kù)


x_norm1=np.random.randn(1000)
plt.rcParams['axes.unicode_minus']=False#顯示負(fù)號(hào)\n",
plt.figure(figsize=(6,4))## 設(shè)置畫布\n",
plt.hist(x_norm1,bins=50)
plt.show()

plt.rcParams['axes.unicode_minus']=False#顯示負(fù)號(hào)\n",
plt.figure(figsize=(6,4))## 設(shè)置畫布\n",
# plt.hist(x_norm1,bins=50)
x_norm2=2+np.random.randn(1000)
x_norm3=4+np.random.randn(1000)
plt.figure(figsize=(6,4))## 設(shè)置畫布\n",
plt.hist(x_norm1,bins=50,density=True,color='r')
plt.hist(x_norm2,bins=50,density=True,color='g')
plt.hist(x_norm3,bins=50,density=True,color='b')


plt.show()

p = plt.figure(figsize=(12,12))\n",
? ? "# 子圖1，點(diǎn)線圖\n",
? ? "ax1 = p.add_subplot(2,2,1)#2行2列4幅子圖的第1幅\n",
? ? "plt.plot(x,y1,color = 'r',linestyle = '--',marker = 'o')\n",
? ? "plt.plot(x,y2,color = 'b',linestyle = '-',marker = '*')\n",
? ? "plt.plot(x,y3,color = 'g',linestyle = '-',marker = '^')\n",
? ? "plt.title('點(diǎn)線圖')#添加標(biāo)題\n",
? ? "plt.legend(['曲線y1','曲線y2','曲線y3'])\n",
? ? "plt.xlabel('x')#添加橫軸標(biāo)簽\n",
? ? "plt.ylabel('y')#添加y軸名稱\n",
? ? "# 子圖2，柱狀圖\n",
? ? "ax1 = p.add_subplot(2,2,2)#2行2列4幅子圖的第2幅\n",
? ? "plt.bar([0,1,2],[np.sum(y1),np.sum(y2),np.sum(y3)],width = 0.5)## 繪制柱狀圖\n",
? ? "plt.title('柱狀圖')#添加標(biāo)題\n",
? ? "labels=['y1的和','y2的和','y3的和']\n",
? ? "plt.xlabel('數(shù)據(jù)系列y')#添加橫軸標(biāo)簽\n",
? ? "plt.ylabel('數(shù)據(jù)系列y的和')#添加y軸名稱\n",
? ? "plt.xticks(range(3),labels)\n",
? ? "# 子圖3，餅圖\n",
? ? "ax1 = p.add_subplot(2,2,3)#2行2列4幅子圖的第3幅\n",
? ? "plt.pie([np.sum(y1),np.sum(y2),np.sum(y3),],labels=labels,\n",
? ? " ? ? ? ?autopct='%1.1f%%')#繪制餅圖\n",
? ? "plt.title('餅圖')#添加標(biāo)題\n",
? ? "# 子圖4，箱線圖\n",
? ? "ax1 = p.add_subplot(2,2,4)#2行2列4幅子圖的第4幅\n",
? ? "labels=['數(shù)據(jù)系列y1','數(shù)據(jù)系列y2','數(shù)據(jù)系列y3']\n",
? ? "plt.boxplot([y1,y2,y3],notch=True,labels = labels, meanline=True)\n",
? ? "plt.title('箱線圖')#添加標(biāo)題\n",
? ? "plt.xlabel('數(shù)據(jù)系列y')#添加橫軸標(biāo)簽\n",
? ? "plt.ylabel('數(shù)據(jù)系列y的值')#添加y軸名稱\n",
? ? "plt.savefig(path+'4subgraph.jpg')#保存圖片\n",
? ? "plt.show()"