[R] NTH PERCENTILE COULMNWIESE
arun
smartpink111 at yahoo.com
Wed Jul 18 14:02:22 CEST 2012
Hi
Try this:
mydat <-read.table(text="
ABC XYZ
12 6
6 50
90 100
55 85
100 25
",sep="",header=TRUE)
apply(mydat,2,quantile,probs=0.2)
ABC XYZ
10.8 21.2
A.K.
----- Original Message -----
From: Rantony <antony.akkara at ge.com>
To: r-help at r-project.org
Cc:
Sent: Wednesday, July 18, 2012 3:06 AM
Subject: [R] NTH PERCENTILE COULMNWIESE
Hi,
Here i have an matrix
mydat <-
ABC XYZ
----- ------
12 6
6 50
90 100
55 85
100 25
i need to find the " NTH percentile " [result should be in column-wise].
here i have a code for NTH percenile,
For eg:- if i need 20th-percentile then,
quantile(ncol(mydat),.2) - here i getting output for complete matrix ,But i
need this for all the columnswise. like this,
for nth percentile
ABC XYZ
------ -------
20% 10 24 [here, given percentile value is not exact result, its
just for output format]
-Its urgent !
- Thanks
Antony.
--
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