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Sequential data set, simply add points (y) 1 by 1.
This is a single point dataset, all points are of the type (0, y1), (1, y2), (2, y3)... Where the X-value is implicitly incremented. This is useful for example for barcharts, where you could fx. use an {@see Image_Graph_Dataset_Array} datapreprocessor to make sence of the x-values.