My application visualizes data using various types of charts. Some data displayed in a pie chart includes negative values. Pie charts are not intended to display negatives.
Excel displays the absolute value of all values. Thus, -20 is displayed on a pie chart as a slice with 20% of the pie circumference. The only way to report the number negative is to reference the legend.Highcharts , which is the graphics engine we use, leaves positive fragments intact, but makes negatives in a very strange and confusing way ( Example JS Lint ). It reinforces them for trying negative, but our users are confused.Others suggested filtering out negatives altogether, since they do not make sense on a pie chart. This separates the data and does not fully reflect the data set, so it probably won’t work for us.And others suggested using a more appropriate type of chart , such as a histogram.Any other solutions? How did you do that?
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