Python Data Analytics by Fabio Nelli

Author:Fabio Nelli
Language: eng
Format: epub, pdf
ISBN: 9781484239131
Publisher: Apress

Saving Your Chart Directly as an Image

If you are interested in saving only the figure of a chart as an image file, ignoring all the code you’ve written during the session, this is also possible. In fact, thanks to the savefig() function, you can directly save the chart in a PNG format, although you should take care to add this function to the end of the same series of commands (otherwise you’ll get a blank PNG file).In [ ]: plt.axis([0,5,0,20])

...: plt.title('My first plot',fontsize=20,fontname='Times New Roman')

...: plt.xlabel('Counting',color='gray')

...: plt.ylabel('Square values',color='gray')

...: plt.text(1,1.5,'First')

...: plt.text(2,4.5,'Second')

...: plt.text(3,9.5,'Third')

...: plt.text(4,16.5,'Fourth')

...: plt.text(1.1,12,'$y = x^2$',fontsize=20,bbox={'facecolor':'yellow','alpha':0.2})

...: plt.grid(True)

...: plt.plot([1,2,3,4],[1,4,9,16],'ro')

...: plt.plot([1,2,3,4],[0.8,3.5,8,15],'g^')

...: plt.plot([1,2,3,4],[0.5,2.5,4,12],'b*')

...: plt.legend(['First series','Second series','Third series'],loc=2)

...: plt.savefig('my_chart.png')

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