Customize script that charts from sharepoint list to summarize the values of labels that repeats. eg. Current graph from following data display a bar for each of the following: Cars 8, Trucks 10, Cars 4, Airplanes 3, Helicopters 1, Airplanes 5, it is needed to customize the script so with given data it shows one bar for the following: Cars 12, Trucks 10, Airplanes 8, Helicopters 1. Source js and code to costomize is provided.
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