[R] Alternative to "apply" in R 3.2.2
Olu Ola
oluola2011 at yahoo.com
Sat Nov 12 00:23:08 CET 2016
Hello,I quite understand that apply is doing what it is supposed to do. I actually found that example online. However, "apply" package is not compatible with R 3.2.2 and as a result, I could not use the code. That is why I am asking for an alternative to "apply" that can be used to do the same thing.
Regards
On Friday, November 11, 2016 4:08 PM, "MacQueen, Don" <macqueen1 at llnl.gov> wrote:
Df.1$D looks correct to me. For example, in the third row, 7*2=14 is
correct with the NA removed.
-Don
--
Don MacQueen
Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062
On 11/11/16, 12:45 PM, "R-help on behalf of Olu Ola via R-help"
<r-help-bounces at r-project.org on behalf of r-help at r-project.org> wrote:
> Hello,I have a dataset that is similar to the one as follows:
>
>> Df.1 <- data.frame(A = c(5,4,7,6,8,4),B =
>>(c(1,5,2,4,9,1)),C=(c(2,3,NA,5,NA,9)))
>> Df.1
> A B C
>1 5 1 2
>2 4 5 3
>3 7 2 NA
>4 6 4 5
>5 8 9 NA
>6 4 1 9
>> Df.1$D = apply(Df.1, 1, prod, na.rm=T)
>> Df.1$D[1] 10 60 14 120 72 36
>> Df.1
> A B C D
>1 5 1 2 10
>2 4 5 3 60
>3 7 2 NA 14
>4 6 4 5 120
>5 8 9 NA 72
>6 4 1 9 36I intend to obtain a column D that takes into account na.rm=T
>but 'apply' does not work in R 3.2.2
>
>A way forward will be greatly appreciated.
>
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>
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