Hello,
I have several files containing two columns, x and y (x is the same for all of 
them).
I would like to calculate the average and standar deviation (as the error bar) 
for the y column for all my data sets.
I have tried using g_analyze:

g_analyze -n 3 -av average.xvg -errbar stddev -f set1.xvg & set2.xvg & set3.xvg 

I get several errors:
set2.xvg: Command not found
set3.xvg: Command not found

And also: "Set 2 is horter (0) than the previous set (1775)

I have seen a similar error in the gromacs list archive, and the problem seemed 
to be the space before the &. I remove this whitespace and also the space after 
the &, but I get the same results. 

How could I solve this problem?

Thanks a lot for your help in advance.

Best wishes,

Rebeca Garcia 
Postdoctoral student
Santiago de Compostela University
Spain
rega...@hotmail.com


        

        
            
                
                    
                        
                             
                             
                            
                            
                            
                        
                    
                
            
            
                
                    
                        
                            
                            
                            
                                
                                    
                                         
                                        
                                        
                                            
                                                
                                                    
                                                
                                                 
                                                
         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