string to calculation algorithm ?
2 views (last 30 days)
Show older comments
Max Müller
on 16 Sep 2014
Commented: Max Müller
on 16 Sep 2014
Hey Guys, Imagine u have a GUI which hold the variable x = 1:10 (doubble). Now I want to create an Editbox which allows the user to enter a calculation algorithm.
for example: x*3.
Is it possible to convert this string (x*3) into an actual calculation algorithm ?
1 Comment
Stephen23
on 16 Sep 2014
The answers below give some solutions, including using eval and str2func , but keep in mind these could be dangerous as this allows the user to run arbitrary code, including system calls via MATLAB.
Accepted Answer
More Answers (1)
Adam
on 16 Sep 2014
You can also create a function handle if you want, something like:
s = 'x*3';
s = ['@(x)' s];
f = str2func(s);
f(x);
See Also
Categories
Find more on Characters and Strings in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!