[R] Alternative to "apply" in R 3.2.2

[Olu Ola]

 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.

	[[alternative HTML version deleted]]