Hello,
I write some code like this:
vx = 30:10:300;
vy = 2:0.04:3;
[xx,yy] = meshgrid(vx,vy);
zz = get_critical_value(yy,xx,0.05);
surf(xx,yy,zz)
Unfortunately, Matlab returns some feedback messages below:
======================================================
FZERO cannot continue because user-supplied function_handle ==>
@(czero)integral(@(y)fun(y,czero),0,3*Cp*sqrt(n))-alpha failed with the error below.
Inner matrix dimensions must agree.
Error in get_critical_value (line 15)
czero_sol = fzero(@(czero) integral(@(y)fun(y,czero),0,3*Cp*sqrt(n))-alpha,czero_guess);
======================================================
What's wrong with my program? How can I solve this situation to get the right plot? Thanks!
*The code of get_critical_value:
function czero_sol = get_critical_value(C,n,alpha)
if n<100
Cp = C+0.33;
else
Cp = C+0.12;
end
fun = @(y,czero)chi2cdf((n-1)*(3*Cp*sqrt(n)-y).^2/(9*n*czero^2),n-1).*(normpdf(y+3*(Cp-C)*sqrt(n))+normpdf(y-3*(Cp-C)*sqrt(n)));
czero_guess = 1;
czero_sol = fzero(@(czero) integral(@(y)fun(y,czero),0,3*Cp*sqrt(n))-alpha,czero_guess);
end
