[R] For Loop

[Wensui Liu]

or this one:

(Vectorize(function(i) log(c1[i + 1] / c1[i])) (1:len))

On Sat, Sep 22, 2018 at 4:16 PM rsherry8 <rsherry8 using comcast.net> wrote:
>
>
> It is my impression that good R programmers make very little use of the
> for statement. Please consider  the following
> R statement:
>          for( i in 1:(len-1) )  s[i] = log(c1[i+1]/c1[i], base = exp(1) )
> One problem I have found with this statement is that s must exist before
> the statement is run. Can it be written without using a for
> loop? Would that be better?
>
> Thanks,
> Bob
>
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