List should be atomic

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"List should be atomic" What does this mean?
Oct 15 in Data Analytics by ch
• 3,290 points
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1 answer to this question.

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@ch,

A few functions only work with an atomic list and not all lists such as sort. The list is atomic when there is a single value at each position and no other R objects. This warning pops up for those functions that are used with nested lists.

> list(1,1:5,6)
[[1]]
[1] 1

[[2]]
[1] 1 2 3 4 5

[[3]]
[1] 6

> sort(list(1,1:5,6))
Error in sort.int(x, na.last = na.last, decreasing = decreasing, ...) :
  'x' must be atomic
answered Oct 28 by Cherukuri
• 31,840 points

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