This strategy is used as a piece of demand to examine the data which must be secured while restricting the loses of precision. For example a data which means to taken temperatures in the midst of the time and creates a decent diagram or graph. In spite of the fact that it is probability that if this data was taken at high repeat, there might be unnecessarily various records. The musing is to constrain the amount of records, while keeping by far most of the information about the evolvement of the temperature.

Keywords: Colour, Graph.

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