[gradsusr] Scatter plot

[Mary Ndlovu]

Thanks for the help. Is there anything i can use besides lterp, because i am using a server which has grads 1.9b4 and i cannot upgrade. Thanks a lot, i am really hopeless 
 

 

Mary Ndlovu
maryndlovu at aol.com

 

 

-----Original Message-----
From: Jennifer Adams <jma at cola.iges.org>
To: GrADS Users Forum <gradsusr at gradsusr.org>
Sent: Thu, Apr 4, 2013 9:31 pm
Subject: Re: [gradsusr] Scatter plot


You can interpolate the data from the second file to the grid of the first file using the lterp function:


set gxout scatter
d var.1; lterp(var.2,var.1)


--Jennifer






On Apr 4, 2013, at 2:26 PM, James T. Potemra wrote:


          
    Mary:
    
    If you open one file, and do a "q dims", you should see all the    dimensions.  Do you get the
    exact same thing for both files (range and resolution, including for    time)?   If not, you may 
    have to interpolate one to the other.
    

      Jim
      
      On 4/4/13 12:34 AM, Mary Ndlovu wrote:
    
    
Hi. 
          
          These are both .nc files. I think it has got to do something          with the grids (thanks for the heads up)... I figured out that          the original grids were           
 file 1: Xsize = 360  Ysize = 180  Zsize = 1  Tsize =            1715
            file 2: Xsize = 720  Ysize = 360  Zsize = 1  Tsize = 1320
            
            Now i have since converted these to a T42 Gaussian grid,            which means i get for both 
            Xsize = 128  Ysize = 64  Zsize = 1 
            
            But now i get an error telling me that 
            Error plotting scatter plot:  Invalid grids
                 The two grids have difference scaling. I am out of            ideas now.
          
          
 
          
          
Mary Ndlovu
            maryndlovu at aol.com
          
          
 
          
          
 
          
          
-----Original            Message-----
            From: James T. Potemra <jimp at hawaii.edu>
            To: GrADS Users Forum <gradsusr at gradsusr.org>
            Sent: Wed, Apr 3, 2013 10:44 pm
            Subject: Re: [gradsusr] Scatter plot
            
            
              Mary:
              
              This is likely because the two variables are on different              grids.  The file with SST is loaded first, and the RF file              probably has a different definition for x/y/z/t.  If you              can't sort it out try send the associated ctl files.
              
              Jim
              
              
On 4/2/13 11:22 PM, Mary                Ndlovu wrote:
              
              
                     
 
                    
                                      
 Hi,                        
                        
                        Please help me. I am trying to plot a scatter                        plot from 2 different files. The 2 variables are                        sst; rf... so file 1 has sst, file 2 has rf. So                        when i do
                        'd sst ; rf.2'
                        i get an error message 
                       
                    
 Data Request Error: Invalid grid coordinates
                        World coordinates convert to non-integer grid                      coordinates
                          Variable = rf.2  Dimension = 0 
                        Error ocurred at column 1
                      DISPLAY error:  Invalid expression 
                        Expression = rf.2
                      
                      I have tried to convert the file to be grads                      friendly... when i deal with this file on its own,                      everything works fine... but in the scatter plot                      it doesn't seem to work
                      
                      I have converted the grid 
                    
                   
                
                
                
_______________________________________________
gradsusr mailing list
gradsusr at gradsusr.org
http://gradsusr.org/mailman/listinfo/gradsusr

              
              
            
                        
              
_______________________________________________
gradsusr mailing list
gradsusr at gradsusr.org
http://gradsusr.org/mailman/listinfo/gradsusr

            
                      
              
      
      
      
_______________________________________________
gradsusr mailing list
gradsusr at gradsusr.org
http://gradsusr.org/mailman/listinfo/gradsusr

    
    
  
_______________________________________________
gradsusr mailing list
gradsusr at gradsusr.org
http://gradsusr.org/mailman/listinfo/gradsusr



--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org







 
_______________________________________________
gradsusr mailing list
gradsusr at gradsusr.org
http://gradsusr.org/mailman/listinfo/gradsusr

 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://gradsusr.org/pipermail/gradsusr/attachments/20130405/8cfe1c03/attachment-0003.html