directgraphics/

vis_parallel_coords.pro

includes main-level program

Parallel coordinates implementation. For more information about parallel coordinates, see Eager Eyes' description.

Try the main-level program at the end of this file to show an example of parallel coordinates:

  IDL> .run vis_parallel_coords

This should produce something like:

vis_parallel_coords, data [, dimension_titles=strarr(m)] [, data_title=string] [, axes_color=color] [, color=lonarr(n)] [, psym=lonarr(n)] [, linestyle=lonarr(n)] [, /overplot] [, /nodata] [, _extra=keywords]

Display a parallel coordinate graph.

data in required type=fltarr(m, n)

data to plot: m dimensions by n data elements

dimension_titles in optional type=strarr(m): titles for the dimensions displayed below the x-axis
data_title in optional type=string: y-axis title
axes_color in optional type=color: color of the axes, not including the leftmost axes with labels
color in optional type=lonarr(n): array of color values for the various data elements, if less than n elements are specified will cycle through the values
psym in optional type=lonarr(n): array of symbol values for the various data elements, if less than n elements are specified will cycle through the values
linestyle in optional type=lonarr(n): array of linestyle values for the various data elements, if less than n elements are specified will cycle through the values
overplot in optional type=boolean: set to skip plotting axes
nodata in optional type=boolean: set to skip plotting data
_extra in optional type=keywords: keywords to PLOT, AXIS, XYOUTS, and OPLOT