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13.12 Making a Box Graph

   

Like Hi Lo graphs, Box graphs display a high and low bound in addition to the actual data point. But Box graphs can also display an additional high and low bound by drawing a rectangle whose top and bottom edges reflect these two new bounds. Box graphs also let you specify a final range of Y data which is displayed using a solid marker having the same shape as the marker used for Y data values. In order to create such a graph, six values of Y data are needed for each X value. To continue the financial analogies, these six values could represent the low, the closing, and the high of the day's DJ average now augmented with the low variance, median price, and upper variance.




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Next: 13.12.1 Drawing the Graph Up: 13 Graph Tutorial Previous: 13.11.1 Drawing the Graph

NExS User's Guide, Version 1.4.5
Grey Trout Software
11 April 1999