Using strings in regular code.

Simple question. I've looked around the documentation and can't seem to find this.

How do I use a string and pass it into code?? Example:

%I create a string
Str = Superman

then how do I pass this string in the saveas command? So instead of writing this line of code:

saveas(gcf,'Superman.fig');

I would write something to the effect of:

saveas(gcf,''Str'.fig') or something?!?!??!?!?

Thanks!

Answer 1

[F.]

For me, to construct the name of the file (it's what I use)

   FileName = 'Superman' ;
   FileDir = 'I:\..\MyDir'
   FilePath = fullfile( FileDir, sprintf( '%s.fig', FileName ));
   saveas(gcf,FilePath)

You can write this in one line if you want

[Clifford Shelton]

that's kinda cool. but would you know how to do what I want to by using the string?

Thanks!

[F.]

I'm sorry but I don't understand your comment

[Clifford Shelton]

Sorry for being so confusing. What I mean is I still don't know how to do what I originally wanted to do. How would I call the superman string that I created and pass it into the saveas code?

I want to basically learn how to pass strings into code in general.

Would you know how to do exactly what I asked in my original question? Thanks for your help!

[John Petersen]

F. gave you a very complete answer, but more than you wanted or could understand. Maybe this is all you want:

Str = 'Superman'; 

saveas(gcf,[Str '.fig']);

[Thomas]

You could also try

Str = 'Superman'
filename=sprintf('%s.fig',Str)
saveas(gcf,filename)

[Kevin Claytor]

Strings are indicated by single quotes; ''

You can concatenate strings with either the strcat(s1,s2,...) command or the straight brakets; [].

So the code would look like;

str1 = 'superman'
str2 = '.fig'
comb1 = strcat(str1,str2)
comb2 = [str1, str2]

The output of both gives you "superman.fig". To use in a call to another function you can just use one of the combined strings;

saveas(gcf,comb1)

Or if you wanted to save some clutter, as those above did;

saveas(gcf,[str1,'.fig'])