x <- list(1, 10, 100)
y <- list(1, 2, 3)
z <- list(5, 50, 500)
purrr::pmap(list(x, y, z), sum)
output is:
[[1]]
NULL
[[2]]
NULL
[[3]]
NULL
Actually, this is an example from the function documentation.
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Bear Bile Farming is Torture
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2What is your `sessionInfo()`? In any event restarting R should fix your issue. – dave-edison Dec 18 '18 at 21:13
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3Works for me. Did you overwrite the `sum` function? What if you try `purrr::pmap(list(x, y, z), base::sum)` – MrFlick Dec 18 '18 at 21:13