1 1 >>> import matplotlib.pyplot as plt 2 2 >>> plt.axis([0,5,0,20]) 3 3 [0, 5, 0, 20] 4 4 >>> plt.title('my first plot',fontsize=20,fontname='Times New Roman') 5 5 <matplotlib.text.Text object at 0x0000000005254208> 6 6 >>> plt.xlabel('counting',color='gray') 7 7 <matplotlib.text.Text object at 0x0000000004C6F2E8> 8 8 >>> plt.ylabel('Square value',color='gray') 9 9 <matplotlib.text.Text object at 0x0000000004C7F080> 10 10 >>> plt.text(1,1.5,'first') 11 11 <matplotlib.text.Text object at 0x00000000022B6128> 12 12 >>> plt.text(2,4.5,'second') 13 13 <matplotlib.text.Text object at 0x0000000005280AC8> 14 14 >>> plt.text(3,9.5,'third') 15 15 <matplotlib.text.Text object at 0x0000000005280F98> 16 16 >>> plt.text(4,16.5,'fourth') 17 17 <matplotlib.text.Text object at 0x0000000005280F60> 18 18 >>> plt.text(1.1,12,'$y=x2$',fontsize=20,bbox={'facecolor':}) 19 19 SyntaxError: invalid syntax 20 20 >>> plt.text(1.1,12,'$y=x2$',fontsize=20,bbox={'facecolor':'yellow','alpha':0.2}) 21 21 <matplotlib.text.Text object at 0x0000000005289978> 22 22 >>> plt.grid(True) 23 23 >>> plt.plot([1,2,3,4],[1,4,9,16],'ro') 24 24 [<matplotlib.lines.Line2D object at 0x0000000005248828>] 25 25 >>> plt.plot([1,2,3,4],[0.8,3.5,8,15],'g^') 26 26 [<matplotlib.lines.Line2D object at 0x0000000005248860>] 27 27 >>> plt.plot([1,2,3,4],[0.5,2.5,4,12],'b*') 28 28 [<matplotlib.lines.Line2D object at 0x0000000004C6F7F0>] 29 29 >>> plt.legend(['first series','second series','third series'],loc=2) 30 30 <matplotlib.legend.Legend object at 0x0000000004C7FF28> 31 31 >>> plt.savefig('c:my_chart.png') 32 32 >>> plt.show()
