[R] Managing output

[Don MacQueen]

See minor comment below

-Don

At 8:07 PM +0000 8/26/09, Oliver Bandel wrote:

<- first part of email omitted ->

><
>For many entries, it would be faster, if you just allocate
>the array that should be written, by just writing 0 into it,
>or empty strings or something like this...
>>  mydat[1:100] <- 0

Simpler is
    mydat <- numeric(100)

>  > mydat
>   [1] 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
>0 0 0 0 0 0
>  [38] 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
>0 0 0 0 0 0
>  [75] 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
>>  mydat <- 1
>>  mydat[2] <- 33
>>  mydat[3] <- -4
>>  mydat
>[1]  1 33 -4
>
>
>instead of "mydat[1:100] <- 0"
>use the length of the itemlist as second parameter.
>
>Ciao,
>   Oliver
>
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-- 
--------------------------------------
Don MacQueen
Environmental Protection Department
Lawrence Livermore National Laboratory
Livermore, CA, USA
925-423-1062