RenkoChart
RenkoChart[{{date1,p1},{date2,p2},…}] makes a Renko chart with prices pi at date datei.
RenkoChart[{"name",daterange}] makes a Renko chart of closing prices for the financial entity "name" over the date range daterange.
RenkoChart[{…},s] makes a Renko chart with brick height of fraction s of the average price.
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