[R] plotting picture data

Petr Pikal petr.pikal at precheza.cz
Fri Aug 4 15:51:16 CEST 2006


seems to me that it can be done by image. See ?image.

Just as illustration.
mat<-matrix(sample(c(1,rep(2,10), rep(3,50)), 1000, replace=T), 
for(i in 1:6) mat[i,c(1:(50-5*i),(50+5*i):100)]<-NA
for(i in 14:9) mat[i,c(1:(50-5*(15-i)),(50+5*(15-i)):100)]<-NA


On 4 Aug 2006 at 15:12, Gichangi, Anthony wrote:

From:           	"Gichangi, Anthony" <anthony at stat.sdu.dk>
To:             	"R-help" <r-help at stat.math.ethz.ch>
Date sent:      	Fri, 4 Aug 2006 15:12:36 +0200
Subject:        	[R] plotting picture data

> Hi R users
> I have a dataset which represents points that are market by patients
> as the source of pain. Basically the patients indicates by a cross on
> a chest pictures where he/she thinks is the source of pain. The data
> was then digitalized by divinding the chest into small squares and
> each square was give value 1 if it was the center 2 if it was touched
> by the markings and 3 if it was not touched.  I would like to plot
> this data on the chest like graph showing the intesities of different
> points and later stratify the grouping variables to see the
> difference.
> Has anybody got an idea how I can go around this ?
> Help is highly appreciated.
> Regards
> Anthony Gichangi, M. sc.
> Department of Statistics.
> JB. Winslřvej 9B,
> DK 5000 Odense C.
> Tel:       00 45 6550 3379
> Mobile:  00 45 61105805
> ______________________________________________
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html and provide commented,
> minimal, self-contained, reproducible code.

Petr Pikal
petr.pikal at precheza.cz

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