Dygraph: how to clear the graph data and reload it?

Question

My application has refresh functionality in which all the present data on the graph should get cleared and data should be loaded from starting. I don't want to destroy the dygraph and recreate it but just need to clear the existing data and plot from starting. What I tried is

g.rawdata_ = null; g.updateOptions({'file': g.rawdata_});

But it throws the error. If i set rawdata to 0 and then try to update, it doesn't clear off the data. Any suggestion on how to do this?

Answer 1

Just like the guys in the comments are saying:

plotData = [[0,0]];

g.updateOptions(
    { 
        'file': plotData
    }
);

plotData has to have something in it. You could probably put one of several different formats, but the above has worked for me in the past. I am live updating a plot as well and refreshing the data every second. To do that, I am preloading the plotData just before the updateOptions.

Good luck,

j