How change part of a text in fprintf, title and subtitle?

Hi all,

I need your help. How one can change as needed part of a text in the fprintf, title and subtitle, and leaving the another one fixed.

I would apprteciate any hint on this. Thx.

Antonio

Answer 1

[Image Analyst]

Just blast over it with the new string. I mean, you put the string in there so somehow you know what you put it. So you could just make up a new string

caption1 = sprintf('This is %d', 10);
title(caption1);
% Now change it.
caption1 = sprintf('This is %d', 99);
title(caption1);

If, for some reason you don't know what's there, then you can retrieve it

existingCaption = get(gca, 'title'); % Or something like that

Then use strfind() or indexing to parse and change the string elements you want changed.

[Image Analyst]

Antonio's response to me from moved from an "Answer" to a Comment to me:

Hi Image Analyst,

Thanks for your soon answer. What with a title or subtitle? How you can keep fixed part of a text but the another one changing as you need?

Eg.

Suppose in a case you need a title as:

As you knows: this is the same.

and in another case,

As you knows: this must change as you need.

First part is fixed, the another is different

Antonio

[Image Analyst]

Sure, just do this:

caption1 = 'As you knows: this is the same.';
title(caption1);
% Now change it.
caption2 = As you knows: this must change as you need.
title(caption2);

or, if you have the first part as a string:

str = caption1 = 'As you knows: ';
caption1 = sprintf('%s this is the same.', str);
title(caption1);
% Now change it.
caption2 = sprintf('%s this must change as you need.', str);
title(caption2);

Answer 2

[Antonio Trujillo-Ortiz]

Thanks to Image Analyst and Mohammad. Both answers are useful.

Antonio

[Image Analyst]

You accepted your own thanks as the Answer, giving the reputation points to yourself instead of to us. You can still "Vote" for our answers to give us points if you want, since you can only "Accept" one answer.

[Antonio Trujillo-Ortiz]

Dear Image Analyst,

As I already did. I'm sorry. By a type error I accepted my answer myself . It must have been that of Mohammad.

Antonio

[Stephen Cobeldick]

Ouch. Better to write a comment as a reply, unless you are actually answering your own question.