How to Access a Variable's Value in a Nested Function?
25 views (last 30 days)
Show older comments
Rightia Rollmann
on 28 Feb 2017
Commented: Adam
on 28 Feb 2017
How Can I see the value of variable g in Command window and Workspace?
function parentfcn(b)
a = b+1
function childfcn
g = a+1
end
end
1 Comment
Adam
on 28 Feb 2017
The shared workspace of a nested function and the main function is not bi-directional. The nested function has access to everything in the workspace of the main function, but not the other way around.
Accepted Answer
Walter Roberson
on 28 Feb 2017
The nested workspace stops existing as soon as parentfcn returns.
See however,
function r = parentfcn(b)
a = b+1
childfcn();
r = @childfcn;
function childfcn
g = a+1
end
end
together with
bbb = parentfcn(7)
s = functions(bbb)
s.workspace{1}
Notice that even though you called childfcn, that the workspace of childfcn does not include the local variable g: the workspace retrieved only includes the objects that the child shares with the parent. g stops existing as soon as childfcn returns.
0 Comments
More Answers (0)
See Also
Categories
Find more on Workspace Variables and MAT-Files 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!