From help-octave-request at bevo dot che dot wisc dot edu Fri Jan 31 10:29:52 2003
Subject: Re: passing values to function
From: Heber Farnsworth <farnsworth at olin dot wustl dot edu>
To: Paolo Ariano <paolo dot ariano at unito dot it>
Cc: help-octave at bevo dot che dot wisc dot edu
Date: 31 Jan 2003 10:29:45 -0600

On Fri, 2003-01-31 at 09:25, Paolo Ariano wrote:
> Il mar, 2003-01-28 alle 17:33, Heber Farnsworth ha scritto: 
> > If I understand your problem correctly then the best way to solve it is 
> > to define a global variable A and write you function as
> 
> sorry but i don't understand, i was reading also the octave manual but
> how to pass a global variable to a function:
> 
> here i define a global varable A:
> 
> svx = (std(mat(3,:)))^2;
> svy = (std(mat(4,:)))^2;
> global A=(sqrt((svx+svy)/2))    
> 
> here i define the function and i try to pass the global variable A to
> this function but probably there is a big mistake:
>  
> function y = f (x,A)  
> y =(x/A**2)*exp(-x**2/(2*A**2));
> endfunction


Write your function this way

function y = f(x)
global A
y = (x/A**2)*exp(-x**2/(2*A**2));
endfunction

Heber

> 
> but nothing. :(
> 
> thanks a lot
> paolo
> 
> 



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