R help - Feb 2012 - Solved: RE: help filtering points from a scatterplot

Thanks again for your help. I did indeed solve the problem by plotting the
initial graph as type='n', then adding my subset of points using
'points'.

Cheers,
--Kelly V.

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of Dallas
Sent: Friday, February 24, 2012 5:58 AM
To: r-help at r-project.org
Subject: Re: [R] help filtering points from a scatterplot

I believe this is what you want to do, though it may need tweaking.

#Make up some data
> a=seq(1,100,by=1)
> b=runif(100,0,0.5)
#Make a matrix
> matrix=cbind(a,b)
#Subset the matrix based upon values of interest
> subsetmatrix=matrix[which(b<0.1),]
#Plot values
> 
>
plot(subsetmatrix[,2]~subsetmatrix[,1],ylim=c(0,1),las=1,ylab='Explan',xlab='Window')

Hope this helps. 



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