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Alex Wein @alexwein
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Clever and maybe useful barchart text function: gist.github.com/ltrgoddard/0f8

sparkbar(c(1:5, 1:5, 6:10, 9:1))
[1] "▁▂▂▃▄▁▂▂▃▄▅▅▆▇█▇▆▅▅▄▃▂▂▁"