[Scilab-users] Custom function takes arguments from workspace

[Stefan Du Rietz]

Hello,
I also once had that problem.
But you can check if it is a local variable:

   if exists("my_last_argument", "l") then

Regards
Stefan


On 2015-04-10 17:21, Pablo Fonovich wrote:
> Hi:
> I've noticed that if i make a function with for example 3 inputs
> arguments, and in the call i forget to give one input argument, the
> function uses (if it exist) a variable from the console with the same
> name of the missing argument. For example... i have this function:
>
> function y=circconv(x,h,N)
>      x=x(:)';h=h(:)';
>      hzp=zeros(1,N);xzp=zeros(1,N)
>      if length(x)<N then
>          xzp=[x zeros(1,N-length(x))]
>      else
>          xzp=x(1:N);
>      end
>      if length(h)<N then
>          hzp=[h zeros(1,N-length(h))]
>      else
>          hzp=h(1:N);
>      end
>      y=ifft(fft(xzp).*fft(hzp))
> endfunction
>
> If i call the function without giving the argument N, but there is a
> variable called N in the workspace, it uses that N...
> Is this intentional? So, if i want the user to give exactly the 3
> arguments... the only solution would be using argn?
>
> because this was causing me some bugs
>
>
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