How can I solve this equation(nonlinear) ?

Hello I want to solve this equation with Matlab but I have some problem.Please help to me for solving this equation.Finally I should find β,aR,KR,R2 values.

f(qe,ye)
β,aR,KR are constant

%qe=[1.48 4.11 3.72 7.11 9.71 10.76 ];
%Ce=[2.57 9.40 31.38 34.41 51.45 146.20 ];
xdata=[2.57 9.40 31.38 34.41 51.45 146.20];
ydata=[1.48 4.11 3.72 7.11 9.71 10.76 ];
x0 =[1;10;100];
[x, resnorm]= lsqcurvefit(@hadifun,x0,xdata,ydata)

"Error

    >> nonlinear
    Error using lsqcurvefit (line 248)
    Function value and YDATA sizes are not equal.

    Error in nonlinear (line 6)
    [x, resnorm]= lsqcurvefit(@hadifun,x0,xdata,ydata)"

    function F = hadifun(x,xdata)
    F = (x(1)*xdata)/(1+((x(2)*xdata.^(x(3)))));
    end

    "Error
    >> hadifun
    Error using hadifun (line 2)
    Not enough input arguments. "

Answer 1

[Matt J]

Looks like you need dot-division,

    F = (x(1)*xdata)./(1+((x(2)*xdata.^(x(3)))));

Answer 2

[matstudent]

Thanks all of you. I've recently started.