A=rand(10)
B=find(A>98)
How do you have text saying "There were 2 elements found" where the 2 is general i.e. it isn't text, so that if I changed B=find(A>90) it would automatically no longer be 2.
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67answers:
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A:
some_number = 2;
text_to_display = sprintf('There were %d elements found',some_number);
disp(text_to_display);
Also, if you wanted to count the number of elements greater than 98 in A, you should one of the following:
numel(find(A>98));
Or
sum(A>98);
sprintf is a very elegant way to display such data and it's quite easy for a person with a C/C++ background to start using it. If you're not comfortable with the format-specifier syntax (check out the link) then you can use:
text_to_display = ['There were ' num2str(some_number) ' elements found'];
But I would recommend sprintf :)
Jacob
2010-05-06 18:15:19
If you don't care about saving a string, you can skip the call to disp, by simply calling `fprintf` (and not saving any output) which will output to the display also. Note that you may wish to add `\n` to ensure a new line appears.
Geoff
2010-05-06 19:02:45
@Geoff - `disp` tacks the newline on for you. Also, you can just do `disp(sprintf(...))` or `disp(['There were ' ...]) to avoid the temp variable.
mtrw
2010-05-06 20:12:47
@mtrw: disp adds three newlines, and thus wastes valuable screen real estate. Therfore, I'd go with fprintf unless you have to keep the string around.
Jonas
2010-05-06 20:53:05
@Jonas - I'd forgotten about that. FWIW, in Octave `disp` uses up just one line.
mtrw
2010-05-06 21:17:36