Message-ID: <1392048503.27901.YahooMailNeo@web142602.mail.bf1.yahoo.com>
Date: 2014-02-10T16:08:23Z
From: arun
Subject: Help
In-Reply-To: <1392047244.34064.YahooMailNeo@web142601.mail.bf1.yahoo.com>
Hi,
?set.seed(42)
mat1 <- matrix(sample(40,5*3,replace=TRUE),ncol=3)
mat2 <- apply(mat1,1,sort,decreasing=TRUE)
?mat2[1,]- mat2[2,]
A.K.
Thank you.
And if I have a lot of rows? How can I apply this for row?
On Sunday, February 9, 2014 8:20 PM, arun <smartpink111 at yahoo.com> wrote:
Based on the data.
vec1 <- c(56,98,15)
vec2 <- sort(vec1,decreasing=TRUE)
?vec2[1]-vec2[2]
#[1] 42
A.K.
Hi,
I need some help in a simple thing....
If I have 3 classes like ? ?56 ? ? 98 ? ?15, I need do max1-max2
where the max 1 is the maximun (98) and the max2 is the second maximun
(56)...
How can I do this in R? To obtain the max I used ?apply(data, 1, max), but...and the other?
Thanks