Re: malpractice at num2str + title

[Markus Mützel]

Am 04. Juli 2020 um 09:55 Uhr schrieb "Benson Muite":
> On 7/4/20 10:46 AM, Fumio Hakamada wrote:
> > t = 1:100;
> > figure
> > for n=1:4
> >      subplot(2,2,n)
> >      a = " deformation - force, n=" + num2str(n);  % no for OCTAVE
> >      y = sin(2*pi*n*t/100);
> >      plot(t,y);
> >      title(a)
> > end
> > 
> Try
> 
> t = 1:100;
> figure
> for n=1:4
>      subplot(2,2,n)
>      a = strcat(" deformation - force, n=", num2str(n));
>      y = sin(2*pi*n*t/100);
>      plot(t,y);
>      title(a)
> end
> 

The reason why Benson's code works but Fumio's doesn't, is that double quotes 
produce char arrays in Octave but they produce string objects in Matlab.
See also this item on the bug tracker:
https://savannah.gnu.org/bugs/index.php?50855

At the moment, a rule of thumb might be to not use double quotes if you want to 
write code that should run in Octave and in Matlab.

Markus