CODEWITHSUNDEEP
rexpressionexpression-evaluation
Al R.
Al R.

Reputation: 2470

What is the returned value of a compound expression in R?

In R, I can do:

{1+1; 2+2; 3+3}

or, if you prefer:

{1+1
 2+2
 3+3}

Perhaps not surprisingly, both of these (compound) expressions evaluate to 6.

Is this a (documented) feature of the R language, that the value of a compound expression is equal to the last evaluated statement in the compound expression?

The official documentation is light on the topic: http://cran.r-project.org/doc/manuals/r-release/R-lang.html#Compound-expressions

Upvotes: 0

Views: 514

Answers (1)

Al R.
Al R.

Reputation: 2470

I see that this is in fact the documented behavior: http://cran.r-project.org/doc/manuals/r-release/R-lang.html#Evaluation-of-expression-objects

Upvotes: 1

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