Message-ID: <da79af330803040328w3acad997leb59e1209733e61a@mail.gmail.com>
Date: 2008-03-04T11:28:52Z
From: Henrique Dallazuanna
Subject: creating a matrix subset based on a threshold cutoff
In-Reply-To: <6ncd3n$7ru2q7@mercury.eclipse.kcom.com>
You have a table or matrix?
if is matrix:
set.seed(123)
x <- matrix(rnorm(100), 10, 10)
cutoff <- -1.5
do.call(rbind, apply(x, 1, function(.x).x[any(.x < cutoff)]))
On 04/03/2008, rich at thevillas.eclipse.co.uk
<rich at thevillas.eclipse.co.uk> wrote:
>
> Hi,
>
> I have a table of x rows and y columns. The table is huge and so i'd like
> to create a subset of the data containing rows where any of the y values are
> below a threshold, say 1e-4. Is there a simple way of doing this in R?
>
>
> thanks
>
> Rich
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> and provide commented, minimal, self-contained, reproducible code.
>
--
Henrique Dallazuanna
Curitiba-Paran?-Brasil
25? 25' 40" S 49? 16' 22" O