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how i can make external graphic?

I make an array that save every single tick, and i want use this data to make a external graphic with a derivative of this data. How i can do

How i can store every candle in history data to a matrix array, for using the data with my math function?

I need to get the open,close,high, low data of every candle, for make my algorithm. where i can get this information? How it's called the variable of this elements