MATLAB: Help using feval with sigma points

feval

Hi i have a function represent by:
function [y] = ffun(x,t);
if nargin < 2, error('Not enough input arguments.'); end
h=0.05;             
m=2;
y=[x(1) + h*x(2) ;x(2) + h*(-9*x(1) + m*(1-x(1)^(2))*x(2))];
I am using 'feval' as:
xPredSigmaPts = feval(ffun,xSigmaPts(1:2,1:5),t)
where my xSigmaPts are:
xSigmaPts =
           0   -2.4495         0    2.4495         0
      6.0000    6.0000    2.8377    6.0000    9.1623
The answer I got using the above are:
xPredSigmaPts =
      0.3000
      6.6000
But this is not what I want. I want the 'feval' to evaluate/using each row and column of my data, xSigmaPts. So that the final result will be
xPredSigmaPts =
        0.3000  -2.1495   0.1419   2.7495    0.4581
        6.6000   4.1023   3.1215   1.8977    10.0785
How do I correct my 'feval' so that the final result as above? Thank you.

Best Answer

It's not feval that needs fixing. It's ffun:
 y=[x(1,:) + h*x(2,:) ;x(2,:) + h*(-9*x(1,:) + m*(1-x(1,:).^(2)).*x(2,:))];
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