How to present the content of a field in a program?

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Csaba
Csaba 2025-5-31
编辑： Image Analyst 2025-5-31
I want to present the variables and their value from a structure in a program, just for information for the users.
Let's say:
a.a=234.5;
a.b=444;
a.s='This is an example';
a
if I run this code in the command window, I get the answer:
a =
struct with fields:
a: 234.5
b: 444
s: 'This is an example'
I want to reproduce this answer and put it in a text window in my program. I could not figure out how to do that.
Thanks for any help!

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采纳的回答

Image Analyst
Image Analyst 2025-5-31
编辑：Image Analyst 2025-5-31
Ran in:
Try this:
a.a=234.5;
a.b=444;
a.s='This is an example';
a
a = struct with fields:
a: 234.5000 b: 444 s: 'This is an example'
fn = fieldnames(a)
fn = 3×1 cell array
{'a'} {'b'} {'s'}
str = sprintf('a = \nstruct with fields:');
for k = 1 : numel(fn)
thisFieldName = fn{k};
if ischar(a.(thisFieldName))
% Print using %s
str = sprintf("%s\n\t%s: '%s'", str, thisFieldName, a.(thisFieldName));
else
% Print using %g
str = sprintf("%s\n\t%s: %g", str, thisFieldName, a.(thisFieldName));
end
end
str % Display in command window.
str =
"a = struct with fields: a: 234.5 b: 444 s: 'This is an example'"

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