Thank you guys! I got it.
Best,
Feng
- Original Message -
From: "Benilton Carvalho" <[EMAIL PROTECTED]>
To: "Feng Qiu" <[EMAIL PROTECTED]>
Cc:
Sent: Thursday, January 18, 2007 12:20 AM
Subject: Re: [R] how to get the index of entry with max value
which.max()
b
On Jan 17, 2007, at 11:20 PM, Feng Qiu wrote:
> Hi all:
> A short question:
> For example, a=[3,4,6,2,3], obviously the 3rd entry of
> the array has the maxium value, what I want is index of the maxium
> value: 3. is there a neat expression to get this index?
which.max
> a <- sample(1:10,10)
> a
[1] 3 4 5 7 2 8 9 6 10 1
> which.max(a)
[1] 9
>
On 1/17/07, Feng Qiu <[EMAIL PROTECTED]> wrote:
>
> Hi all:
> A short question:
> For example, a=[3,4,6,2,3], obviously the 3rd entry of the array
> has the maxium value, what I want
?which.max
?which.is.min
On Wed, 17 Jan 2007, Feng Qiu wrote:
> Hi all:
> A short question:
> For example, a=[3,4,6,2,3], obviously the 3rd entry of the array has
> the maxium value, what I want is index of the maxium value: 3. is there a
> neat expression to get this index?
>
Or
which.max(a)
-Christos
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of talepanda
Sent: Wednesday, January 17, 2007 11:45 PM
To: Feng Qiu
Cc: r-help@stat.math.ethz.ch
Subject: Re: [R] how to get the index of entry with max value in an array?
In R
In R language, one solution is:
a<-c(3,4,6,2,3)
which(a==max(a))
On 1/18/07, Feng Qiu <[EMAIL PROTECTED]> wrote:
> Hi all:
> A short question:
> For example, a=[3,4,6,2,3], obviously the 3rd entry of the array
> has the maxium value, what I want is index of the maxium value: 3
Hi all:
A short question:
For example, a=[3,4,6,2,3], obviously the 3rd entry of the array has
the maxium value, what I want is index of the maxium value: 3. is there a neat
expression to get this index?
Thank you!
Best,
Feng
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