[R] Equivalent to matlab ".*" operator in R

Dénes Tóth toth.denes at ttk.mta.hu
Wed Nov 19 16:34:51 CET 2014


Hi,

just for the records, your original code seems incorrect, see inline.

On 11/19/2014 03:22 PM, Ruima E. wrote:
> Hi,
>
> I have this:
>
> y = matrix(cbind(c(0, 0.5, 1),c(0, 0.5, 1)),ncol=2)
> z = matrix(c(12, -6),ncol=2)
>
> In matlab I would do this
>
>> y .* x
Here you wrote 'x' which I guess refers to 'z', and should be repmat(z, 
size(y, 1), 1) in matlab (assuming 'z' is a row vector)

> I would get this in matlab
>
>> ans
> 0    -0
> 6    -3
> 12   -6
>
> What is the equivalent in R?
>
> Thanks
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.



More information about the R-help mailing list