On 2014-09-16 10:50, PIKAL Petr wrote:
switch(menu(c("List letters", "List LETTERS")) + 1, cat("Nothing done\n"), letters, LETTERS) why is the result changed if ' + 1,' removed?Because +1 belongs to switch not to menu. You can translate above to:
The help pages ?switch, ?menu do not describe (in my eyes! :) ) the significance of '+ 1'; where is this described in more detail please?
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