in R, can I stop print(cat(“”)) from returning NULL? and why does cat(“foo”) return foo>

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-上瘾入骨i
-上瘾入骨i 2021-02-18 20:16

If I enter

print(cat(\"\"))

I get

NULL

I want to use cat() to print out the progress of an R sc

6条回答
  •  独厮守ぢ
    2021-02-18 20:51

    NULL is the return value of "cat()". If you omit the outer "print()" you won't see the NULL.

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