> On 28 Jul 2015, at 15:53 , Sarah Goslee wrote:
>
> Sure, there are lots of ways to do everything in R. But mixing in
> apply muddles the issue, since apply() and sweep() use different logic
> to determine MARGIN.
Actually, apply() and sweep() were designed together and use exactly the SAME
l
to:r-help-boun...@r-project.org] On Behalf Of Sarah Goslee
> Sent: Tuesday, July 28, 2015 8:32 AM
> To: Steven Yen; r-help
> Subject: Re: [R] Element-by-element division
>
> Hi,
>
> It's a good idea to keep discussion on R-help, so others can
> participate and the results
opology
Texas A&M University
College Station, TX 77840-4352
-Original Message-
From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Sarah Goslee
Sent: Tuesday, July 28, 2015 8:32 AM
To: Steven Yen; r-help
Subject: Re: [R] Element-by-element division
Hi,
It's a good i
Hi,
It's a good idea to keep discussion on R-help, so others can
participate and the results make it into the archives.
On Mon, Jul 27, 2015 at 9:11 PM, Steven Yen wrote:
> Thanks Sarah. That serves my need. I however find ?sweep hard to comprehend.
Heh. The help makes it seem more complicated
Hi,
See ?sweep
For instance, to get your matrix two:
> sweep(a, 2, b, "/")
[,1] [,2]
[1,]2 24
[2,]4 28
[3,]6 32
[4,]8 36
[5,] 10 40
Sarah
On Mon, Jul 27, 2015 at 4:04 PM, Steven Yen wrote:
> I need help with element-by-element division. Below, matrices a and
I need help with element-by-element division. Below, matrices a and c are
both 5 x 2 and element-by-element division works as (I) expected. What if
matrix is 1 by 2: to divide first column of a by b[1] and second column of
a by b[2]. I had to go around (two ways) to make it work. In Gauss, these
ca
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