> On 31-12-2014, at 08:40, Karim Mezhoud <kmezh...@gmail.com> wrote:
>
> Hi All,
> I would like to choice between these two data frame convert. which is
> faster?
>
> for(i in 1:ncol(DataFrame)){
>
> DataFrame[,i] <- as.numeric(DataFrame[,i])
> }
>
>
> OR
>
> DataFrame <- as.data.frame(apply(DataFrame,2 ,function(x) as.numeric(x)))
>
>
Try it and use system.time.
Berend
> Thanks
> Karim
> Ô__
> c/ /'_;~~~~kmezhoud
> (*) \(*) ⴽⴰⵔⵉⵎ ⵎⴻⵣⵀⵓⴷ
> http://bioinformatics.tn/
>
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>
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