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

Question

If I enter

print(cat(\"\"))

I get

NULL

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

Answer 1

I do not see the need to use print(cat()). To printing a message cat() is already sufficient. This may be what you are looking for:

  for (j in 1:n) {
     cat("Running loop", j, "of", n, "\n")
  }