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

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夕颜
夕颜 2021-02-18 16:06

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
  •  灰色年华
    2021-02-18 16:16

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

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