Posts by Arthur Vaz • 123 points
1 post
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votes2
answers131
viewsQ: What does the expression !(...) mean?
I couldn’t figure out what the expression means !(...) Example: if (!(book %in% books)) stop("Unknown book")
1 post
0
votes2
answers131
viewsI couldn’t figure out what the expression means !(...) Example: if (!(book %in% books)) stop("Unknown book")