error with 20x10 array in a function

Hi;

Im having this error when i run "fcp" function (detailed below).

??? Attempted to access ASEB(1,1); index out of bounds because size(ASEB)=[0,0].

Error in ==> fcp at 15
        Vsal(x)=ASEB(i,j);

Working out of the function, all variables load but it seems ASEB is not operating in the function.

Hope someone can help me

function [ Cp ] = fcp( beta,lambda )

%FCP Summary of this function goes here
%   Detailed explanation goes here
global ASE

%ASE matrix loaded in workspace previously

ASEB=(0.0003*beta.^3   -0.0044*beta.^2   -0.0479*beta   + 1.0850)*ASE;

x=0;
for i=1:20;
    for j=1:10;

          x=x+1;
          Vsal(x)=ASEB(i,j);
      end;
  end;

%como el vector Vsal tambien se reduce en abcisas, habra que multiplicarlo
%de nuevo por otra funcion de B

fB2=(0.0026*beta.^2   -0.1031*beta   + 1.2393);

Vsal=fB2*Vsal;

i=(200/20)*lambda;

fix(i);

Cp=Vsal(i);
end

[Wayne King]

Please format your code and you need to tell us the size of beta and lambda, give us some representative values.

Answer 1

[Rizwana]

Your ASE is matrix of what size?? Must be huge.. try to loop it...

r = size (ASE);

for i = 1:r(1) % 1:r(2) assuming it is column-vector.

values = Asme(:,1); %reads all values

ASEB=(0.0003*beta.^3 -0.0044*beta.^2 -0.0479*beta + 1.0850)* values;

output(i,:) = ASeb;

end

outputfilename = ['output\' outputfilename];

dlmwrite(outputfilename,output, '\t');

% now use this aseb for further calculations... I hope i got this question right. Since you are not looping over your values, it is storing only last set of data

Answer 2

[Andrei Bobrov]

function  Cp  = fcp( beta,lambda )
    global ASE
    Vsal = polyval(conv([0.0003,-0.0044,-0.0479,1.085],...
          [0.0026,-0.1031,1.2393]), beta)*reshape(ASE',[],1);
    Cp = [];
    try
        Cp = Vsal(fix(10*lambda));
    catch
        disp('Look size of ASE and value of lamda');
    end
end