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I have a pandas dataframe with two columns and around 50 rows. I want to create a scatter plot of the two columns but I also want to have the datapoints connected to each other. So I did something like this:

plt.plot(df['colA'], df['colB'], 'o-')
plt.show()

I am getting an output like this: enter image description here

But I want to have data points connected to each other so as to give an ellipse circumscribing the data points. I feel like the reason I'm getting this plot is that in the dataframe that's how the datapoints are sequenced. Is there a way to deal with this?

Any help would be appreciated! Thanks in advance

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    It looks like you'd need to sort them into the correct order. You could do this by creating another column corresponding to the angle around the circle. To calculate this, pick a point, (xc, yc), that's within the circle (say the vector average of all the points) , and then A = atan2(y-yc, x-xc), and order by column A. Commented Feb 7, 2020 at 21:37
  • 4
    Use ConvexHull to get this done: stackoverflow.com/questions/36763853/… Commented Feb 7, 2020 at 21:44
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