display max (character)

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amateurintraining
amateurintraining on 6 Oct 2017
Commented: Image Analyst on 7 Oct 2017
Hi! I have a function and I want to display the max of two scores. For example, if A=5 and B=9 and C is the max, I want C to reply that B is the greater value. How do I do this? Thanks in advance.
  1 Comment
Cedric
Cedric on 6 Oct 2017
Edited: Cedric on 6 Oct 2017
Do you need any clarification about this before?
There are also many other questions for which you got an answer and didn't seem to come back and really care.

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Accepted Answer

Walter Roberson
Walter Roberson on 6 Oct 2017

More Answers (1)

Image Analyst
Image Analyst on 6 Oct 2017
How can C, which will equal 9, reply anything? A simple number can't return anything. I assume you want the function to return the name of the biggest variable, like
A = 5;
B = 9;
varName = myFunction(A, B) % Should return a string 'B' in this case for varName.
message = sprintf('%s is the max', varName);
uiwait(helpdlg(message)));
And myFunction would be something like
function letter = myFunction(v1, v2)
if v1 > v2
etc......
And what you'd see is a popup message box with the message "B is the max". Right? I think Walter showed a way, a few months ago, where the function myFunction() could find out the name of the variable name in the calling routine but I don't remember what it was. The function was called something like invarname() or varnames() or varinputname() or something - I don't remember and can't find it now. So like that function would return "B" because it somehow knew that v2 in the function definition was really called B in the calling routine. Perhaps Walter will remind me.
  2 Comments
Walter Roberson
Walter Roberson on 6 Oct 2017
inputname()
Image Analyst
Image Analyst on 7 Oct 2017
Thanks Walter! Then this seems to work:
function test()
A = 5;
B = 9;
varName = myFunction(A, B) % Should return a string 'B' in this case for varName.
message = sprintf('%s is the greater value', varName);
uiwait(helpdlg(message));
end
function letter = myFunction(v1, v2)
if v1 > v2
letter = inputname(1);
else
letter = inputname(2);
end
end
It pops up a message box that says "B is the greater value" just like you asked for.

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