Entering values into a function handle output

Hello, I have a function, and I can calculate P from the command window, but when I use this function, my output yh has P(1), P(2), etc, but what I want it do to is replace those with the actual value calculated

function yh = BreakRod(cellData)
Y = cellData{1,:}';
U = cellData{2,:}';
V = cellData{3,:}';
A = Adef(U,V);
P = A\Y;
yh = @(U,V) P(1) + P(2)*exp(U.^2) + P(3)*sqrt(V) + P(4)*U.*V;
end

function A = Adef(U,V)
N = size(U,1);
A = ones(N,4);
A(:,2) = exp(U.^2);
A(:,3) = sqrt(V);
A(:,4) = U.*V;
end

cellData{:}

ans =

       1     4     5     6

ans =

      1.0000    2.0000    3.0000    0.5000

ans =

       2     1     7     3

P

P =

     30.4842
      0.0299
     -3.4979
    -12.3093

yh = BreakRod(cellData)

yh = 

      @(U,V)P(1)+P(2)*exp(U.^2)+P(3)*sqrt(V)+P(4)*U.*V

Answer 1

[Geoff Hayes]

Rick - you can use the str2func function to convert a string to a function. Just build the function string by concatenating parts of the equation and use num2str to convert the P numeric data to strings

 yh = str2func(['@(U,V) ' num2str(P(1)) ' + ' num2str(P(2)) ...
                '*exp(U.^2) + ' num2str(P(3)) '*sqrt(V) + '  ...
                num2str(P(4)) '*U.*V']);

And then

 yh = BreakRod(cellData)

 yh = 
    @(U,V)30.4842+0.029898*exp(U.^2)+-3.4979*sqrt(V)+-12.3093*U.*V

Try the above and see what happens!