[R] Alternative to "apply" in R 3.2.2

[MacQueen, Don]

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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