[R] difference between ifelse and if...else?

[MacQueen, Don]

Because ifelse is not intended to be an alternative to if ... else. They exist for different purposes.

(besides the other replies, a careful reading of their help pages, and trying the examples, should explain the different purposes).

--
Don MacQueen
Lawrence Livermore National Laboratory
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Livermore, CA 94550
925-423-1062
Lab cell 925-724-7509
 
 

On 12/13/17, 7:31 AM, "R-help on behalf of Jinsong Zhao" <r-help-bounces at r-project.org on behalf of jszhao at yeah.net> wrote:

    Hi there,
    
    I don't know why the following codes are return different results.
    
     > ifelse(3 > 2, 1:3, length(1:3))
    [1] 1
     > if (3 > 2) 1:3 else length(1:3)
    [1] 1 2 3
    
    Any hints?
    
    Best,
    Jinsong
    
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