[R] summing up a matrix

[Christian Brandstätter]

Hi,

that should do:

mat <- rbind(c(20,200,100,50,100,30),
c(100,200,100,50,100,30),
c(50,200,100,50,100,30))
rownames(mat) <- c("2016-11","2016-12","2017-01")
t(apply(mat,1,cumsum))

Best,
Christian

Am 18.11.2016 um 16:16 schrieb Matthias Weber:
> Hello together,
>
> is it possible, to summing up a matrix?
> I have the following matrix at the moment:
>
>                                 [,1]         [,2]         [,3]        [,4]         [,5]         [,6]
> 2016-11                20            200        100         50           100         30
> 2016-12                100          200        100         50           100         30
> 2017-01                50            200        100         50           100         30
>
> Now I want to summing up the matrix in a new matrix.
>
> The result should look like the following:
>
>                                 [,1]         [,2]         [,3]        [,4]         [,5]         [,6]
> 2016-11                20            220        320         370         470         500
> 2016-12                100          300        400         450         550         580
> 2017-01                50            250        350         400         500         530
>
> Is it possible, to create that?
>
> Thanks for your help.
>
> Best regards.
>
> Mat
>
>
> 	[[alternative HTML version deleted]]
>
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