Under certain circumstances, using PROC CHART with the
Output Delivery System produces files that are not portable. If the
SAS system option FORMCHAR= in your SAS session uses nonstandard line-drawing
characters, then the output might include strange characters instead
of lines in operating environments in which the SAS Monospace font
is not installed. To avoid this problem, specify the following OPTIONS
statement before executing PROC CHART:
options formchar="|----|+|---+=|-/\<>*";