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![]() proc breakaxis may be used to render a "break" symbol when preparing plots that have a broken axis in order to accomodate an extreme value. In terms of plotting mechanics, breaking an axis means that one region of the plotting area uses one scale space, while the other region uses a different scale space. A "break" symbol is used to illustrate where these two regions meet. Ploticus cannot render broken axis plots automatically; generally they are "by hand" efforts. The general approach is to use a "trick": set up one space, plot the values with a truncate option so that the extreme values do not go out of range, then set up a second space immediately adjacent to the first one, plot the values again so that only extremeties show, then use proc breakaxis to render a break symbol along the axis and again within the plot. The two plotting areas must be proportional in scaling.
Broken axis plotting works with proc bars, proc rangebar, and proc scatterplot.
It currently does not work with lineplots or rangesweep,
because these are unable to confine to the plotting area.
ExamplesGallery examples where this is used is brokenaxis and spence_rtAttributesThe breakpoint attribute must be specified.axis x | y
breakpoint plotvalue
location axis | plotvalue
style slant | straight
linelength n
fillcolor color
gapsize n
linedetails linedetails
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![]() data display engine Copyright Steve Grubb ![]() |
Ploticus is hosted at http://ploticus.sourceforge.net |
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