I have to generate a graph showing the instantaneous value of power at each hour of the day from the following data .
(It shows the power of each device and the start and end time of its usage)
Capture.JPG
How can i generate or capture the value at each hour of the day only from this data ?
P.S : I had posted in Stackoverflow without any response , so if anyone can help me with this, it would be really appreciated!
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