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Advice on Django and charts

Hi, firstly thanks for the tutorials I've found them very useful.

I would appreciate your advice on what to use to generate interactive charts on a Django website.

The experimental data occasionally includes errors. As part of the analysis I graph all the data and then select individual points which are outliers and exclude them from the analysis.

To make this easier I would like the chart to show the data on a scatter chart and the user can then easily select the erroneous points and by clicking on them exclude them from the analysis by moving them to a second dataset which will just show the excluded points on the same chart. Obviously to carry out the analysis I also need to connect to the database model and update it again afterwards.

There seems to be a few options to do this, but Django documentation provides no obvious method for generating charts. I've managed to get it partially working with Google Charts api,  but before I spend too long going down this path I wondered if there was a better solution?

PS. the reason I'm using Django rather than just Python is
a) it gives colleagues at different sites the ability to see and use the data and
b) it gives me an excuse to learn Django on something other than a blog.

Thanks