Is there an error in the documentation of the Curve Fitting Toolbox for the example on different plotting options?

The example can be seen at the following URL:

https://www.mathworks.com/help/curvefit/cfit.plot.html

When I execute the following command:

plot(fit1,'k-',x,y,'b.','predf','predo',0.99);

I receive the following error:

ERROR: ??? Error using ==> cfit/plot
Argument 8 is incorrect

Answer 1

[MathWorks Support Team]

This bug has been fixed for Release 14 (R14). For previous releases, please read below for any possible workarounds:

This is an error within the documentation for the Curve Fitting Toolbox 1.1 (R13.0.1) within the example for the PLOT function.

The documentation should read as follows:

plot(fit1,'k-',x,y,'b.','predfunc','predobs',0.99);