Smooth function not working in R2015b

%%smoothing individual traces
[r c] = size(ft);
for k = 1:c
    ft_smo(:,k) = smooth (ft(:,k), 0.2,'loess');
end

figure, plot(time_ft, ft_smo);
%figure, surf(ft_smo);
x_ax = [1:1:c];
figure, surf(x_ax, time_ft, ft_smo);
ylabel('time sec');
xlabel('bouton #');
zlabel('Fluo Int');

The error I get is:

Undefined function 'smooth' for input arguments of type 'double'.

Error in vglutpH_NH4Cl_Brad4 (line 167) ft_smo(:,k) = smooth (ft(:,k), 0.2,'loess');

[Stephen23]

@Bradley Cory: do you have the Curve Fitting Toolbox installed and a license for it?

[Bradley Cory]

How do you check for that?

Edit: Newver mind, I don't have that installed. Thank you :)