Create multiple graphics in R without multiple calls to pdf / postscript / jpeg / png
To save multiple graphics, e.g, Rplot001.pdf, Rplot002.pdf, …, Rplot050.pdf, we don’t have to call pdf() 50 times (or any similar function).
Use “Rplot%03d.pdf” for filename in pdf() and each plot() call will be saved to a new pdf file. Use dev.off() once at the end to close all devices!
check out ?sprintf for more information about %03 and other C-style string formatting.
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