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beginner's problem in displaying large data

4 messages · Terry Mu, Spencer Graves, Romain Francois

Original
Terry Mu
# 
I got a sample data (let's call it sample.data), which is about 2200 by 15.

I tried to take a look of all data
It shows only a part of data that I thought was a corner. It does not
really affect my job, but I thought it is nice to have a look of all
data. I can see individual records and they are fine.

Is this normal because of buffer size or some reasons? Can I use other
commands or change some settings to display all data?

Thanks,
Terry
Spencer Graves
# 
1.  Did you try "dim(sample.data)"?  Is it actually 2200 by 15?  
Or are you reading in just some subset of the data?  If it is 2200 by 
15, could you also please do "class(sample.data)"? 

      2.  I just got a full listing from the following: 

      (tst <- data.frame(array(rnorm(2200), dim=c(2200, 15))))

      You might try this.  With R 2.0.0patched under Windows 2000, I got 
rows 1:2200 flying by 3 times, each with 5 columns. 

      3.  Have you considered doing plots (including qqnorm) of numeric 
variables and tables of character variables?  These can often reveal 
problems I might never see in a simple scan of numbers. 

      4.  "PLEASE do read the posting guide! 
http://www.R-project.org/posting-guide.html".  At minimum, please tell 
us which version of R under which operating system, and specifically 
what you did to get it into R and how you know it's 2200 by 15. 

      hope this helps. 
      spencer graves
Terry Mu wrote:

            

      
      
      
    

        

      
      
    

        

  
    

      
      
    

  


  


      

    

    

      
      

        


  

        

      Romain Francois
    

    

      
      #
    

  


  

      
You can also try :

ab <- matrix(rnorm(10000),nc=5)
edit(ab)


Hope this helps.

Spencer Graves a ??crit :

            

      
      
      
    

        

      
      
    

        

  
    

      
      
    

  


  


      

    

    

      
      

        


  

        

      Spencer Graves
    

    

      
      #
    

  


  

      
Are you sure you are only getting the last 5 columns, rows 1723:2200? 
  There isn't a scroll bar some place?

	  What do you get from the following?

      (tst <- data.frame(array(rnorm(500), dim=c(500, 6))))

	  This should come in 2 sets of 500 rows, the first with 5 columns, the 
second with only 1.  If what you said earlier is accurate, I would guess 
that when this is done, the screen would display rows 23:500 of column 
6.  Is this what you get?

	  If you still have troubles, check "?sink", pipe the output to a text 
file file, and look at the file with some other application, e.g.:

	  sink("huh.txt")
	  (tst <- data.frame(array(rnorm(500), dim=c(500, 6))))
	  sink()

	  hope this helps.
	  spencer graves

        
Terry Mu wrote:

        
>Dear Spencer,
 >
 >Thank you for your comment.
 >
 >>     1.  Did you try "dim(sample.data)"?  Is it actually 2200 by 15?
 >>Or are you reading in just some subset of the data?  If it is 2200 by
 >>15, could you also please do "class(sample.data)"?
 >
 >
 >Yes, dim() gives the number.
 >class(sample.data) gives "data.frame"
 >
 >
 >>     2.  I just got a full listing from the following:
 >>
 >>     (tst <- data.frame(array(rnorm(2200), dim=c(2200, 15))))
 >>
 >>     You might try this.  With R 2.0.0patched under Windows 2000, I got
 >>rows 1:2200 flying by 3 times, each with 5 columns.
 >
 >
 >I tried this, did not get full listing. What I got was last 5 columns
 >from 1723. I am using R 2.0.0 under Windows 2000.
 >
 >
 >>     3.  Have you considered doing plots (including qqnorm) of numeric
 >>variables and tables of character variables?  These can often reveal
 >>problems I might never see in a simple scan of numbers.
 >
 >
 >They are all numbers.
 >
 >>     4.  "PLEASE do read the posting guide!
 >>http://www.R-project.org/posting-guide.html".  At minimum, please tell
 >>us which version of R under which operating system, and specifically
 >>what you did to get it into R and how you know it's 2200 by 15.
 >
 >
 >Sorry about that.
 >
 >Thanks,
 >Terry Mu
 >
 >

        
>>Terry Mu wrote:

        
>>
 >>>I got a sample data (let's call it sample.data), which is about 2200 
by 15.
 >>>
 >>>I tried to take a look of all data
 >>>
 >>>
 >>>
 >>>>sample.data
 >>>>
 >>>>
 >>>It shows only a part of data that I thought was a corner. It does not
 >>>really affect my job, but I thought it is nice to have a look of all
 >>>data. I can see individual records and they are fine.
 >>>
 >>>Is this normal because of buffer size or some reasons? Can I use other
 >>>commands or change some settings to display all data?
 >>>
 >>>Thanks,
 >>>Terry
 >>>
 >>>______________________________________________
 >>>R-help at stat.math.ethz.ch mailing list
 >>>https://stat.ethz.ch/mailman/listinfo/r-help
 >>>PLEASE do read the posting guide! 
http://www.R-project.org/posting-guide.html
 >>>
 >>>
 >>--
 >>Spencer Graves, PhD, Senior Development Engineer
 >>O:  (408)938-4420;  mobile:  (408)655-4567
 >>
 >>