Talk:Sparkline in unicode: Difference between revisions

How much bigger ? Well the margin can be an epsilon, but it can't be zero without losing at least one data point from the sparkline. As the task description doesn't define the size of this non-zero margin (and its precise sizedimension determines the position of '''all the bin breaks''' and the precise size of all the bins), I '''don't''' think that we can really give a test case like test 2 above, and define what the output should be. It isn't yet defineddeterminate ... To define the expected output, we would have to define the difference between the range of the sparkline and the range of the data,

If we try to fudge it with a special case for points that should formally have been dropped off one end or other of the scale, then we are simply saying that we do know that the range of the diagram is really bigger than that of the data, but we don't want to define by how much. That means that the precise size of each bin, and the precise location of all the edges, is also undefined. All we really know about them is that they are '''definitely not''' quite where we have drawn them :-)