On 3/11/2009 10:18 AM, Sean Zhang wrote:
Dear R-helpers:
I have a question related to <- and =.
I saw very experienced R programmers use = rather than <- quite
consistently.
However, I heard from others that do not use = but always stick to <- when
assigning valuese.
I personally like = because I was using Matabl, But, would like to receive
expert opinion to avoid potential trouble.
Use <- for assignment, and = for function arguments. Then the
difference between
f( a = 3 )
f( a <- 3 )
is clear, and you won't be surprised that a gets changed in the second
case. If you use = for assignment, the two lines above will be written as
f( a = 3 )
f( ( a = 3 ) )
and it is very easy to miss the crucial difference between them.
Duncan Murdoch
Many thanks in advance.
-Sean
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