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6 messages · NICOLAS DEIG, Dimitris Rizopoulos, Uwe Ligges +2 more

Original
NICOLAS DEIG
# 
hello,

I wonder whether there is a way to plot in R the following:

I have two arrays of dimension (200*1) say x1 and x2.
I would like to plot on the same graph x1[1:50,]*x2[1:50,] with pch=1  
                        

                                       x1[51:100,]*x2[51:100,] with pch=2
                                     x1[101:150,]*x2[101:150,] with pch=3
                                      x1[151:200,]*x2[151:200,] with pch=4
is it possible with the "plot" function? Or do I have to plot
4differents graphs?
THanks in advance.
nicolas
Dimitris Rizopoulos
# 
try this:

x1 <- as.matrix(rnorm(200))
x2 <- as.matrix(rnorm(200))
###############
dim(x1) <- dim(x2) <- c(50,4)
matplot(x1,x2, pch=1:4, col=1)



Best,
Dimitris

----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/16/336899
Fax: +32/16/337015
Web: http://www.med.kuleuven.ac.be/biostat
     http://www.student.kuleuven.ac.be/~m0390867/dimitris.htm


----- Original Message ----- 
From: "NICOLAS DEIG" <nicolas.deig at epfl.ch>
To: <r-help at stat.math.ethz.ch>
Sent: Friday, January 28, 2005 11:22 AM
Subject: [R] plot
Uwe Ligges
#
NICOLAS DEIG wrote:

            

      
      
      
    

        
You can specify pch in form of a vector (as long as x1) as in:

plot(1:10, pch=rep(1:2, each=5))

Uwe Ligges

            

      
      
      
    

        

      
      
    

  
  


  


      

    

    

      
      

        


  

        

      Jacques VESLOT
    

    

      
      #
    

  


  

      
if * in x1[1:50,]*x2[1:50,] means "times", try :
matplot(matrix(x1,ncol=4)*matrix(x2,ncol=4))

if * means "vs", try :
matplot(matrix(x1,ncol=4),matrix(x2,ncol=4))


-----Message d'origine-----
De : r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch]De la part de NICOLAS DEIG
Envoye : vendredi 28 janvier 2005 14:23
A : r-help at stat.math.ethz.ch
Objet : [R] plot


hello,

I wonder whether there is a way to plot in R the following:

I have two arrays of dimension (200*1) say x1 and x2.
I would like to plot on the same graph x1[1:50,]*x2[1:50,] with pch=1


                                       x1[51:100,]*x2[51:100,] with pch=2
                                     x1[101:150,]*x2[101:150,] with pch=3
                                      x1[151:200,]*x2[151:200,] with pch=4
is it possible with the "plot" function? Or do I have to plot
4differents graphs?
THanks in advance.
nicolas

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      Romain Francois
    

    

      
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Hello,

You search that command :

plot(x1,x2,pch=rep(1:4,50))


I think you should read some basic manuals about R, the FAQ, etc ...

        
NICOLAS DEIG wrote:

        

            

      
      
      
    

        

  
    

      
      
    

  


  


      

    

    

      
      

        


  

        

      Romain Francois
    

    

      
      #
    

  


  

          

      
      
      
    

        
Oups, sorry, I meant that :

plot(x1,x2,pch=rep(1:4,each=50))
                       ^^^^


I need more cafeine on morning !