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Sparkline in unicode: Difference between revisions
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→{{header|REXX}}: added comments to the version 2 section header. -- ~~~~
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::* older versions of REXX such as PC/REXX and Personal REXX which don't support the '''changestr''' BIF
This version also removed some dead code, simplified the program structure and subroutines, added comments.
<br>''Single line comments'' were introduced in Regina 3.4.
<lang rexx>/*REXX program displays a sparkline (spark graph) for a group of values.*/
if arg()==0 then do /*No arguments? Use defaults.*/
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