[R] Summing with NA

[stephen sefick]

k <- c(NA, NA)
z <- c(-12, -9)
e <- c(-2,0)
sum(na.omit(c(z, e, k)))

Will this do the trick?  Why are you summing in a sum()

sum(k+z+e)

On Mon, Mar 22, 2010 at 8:51 PM, tj <girlme80 at yahoo.com> wrote:
>
> Hi all,
> May I request for your help if you have time and if you have an idea on how
> to do this.  I want to add three vectors... And my goal is to obtain the sum
> of the vectors, ignoring the vector of "na"...
>
> Here is what i did in R.. I'm adding the three vectors, e,z,k, and my
> objective is to get an answer = -23.
> I tried putting the na.omit but it did not work.  Thanks.
>
>> z
> [1] -12  -9
>> e
> [1] -2  0
>> k
> [1] NA NA
>> sum(z+e+k)
> [1] NA
>>
>
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-- 
Stephen Sefick

Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods.  We are mammals, and have not exhausted the
annoying little problems of being mammals.

								-K. Mullis