Find cell and return index
2 views (last 30 days)
Show older comments
Ting-Yu Chueh
on 20 Apr 2019
Answered: Image Analyst
on 20 Apr 2019
Hi everyone,
a = { {21 3 1}, {22 32 2}, {21 31 2}, {22 32 1} };
I would like to know the locations of the cells containing a specific value- {21 31 1}
In this case, it's 1.
I try to use like below:
Match = {21 31 1};
CorrectMatch = find (cellfun(@(x) isequal (x,Match), a(1,:)));
but it doesn't work out
Could any one help me?
1 Comment
Walter Roberson
on 20 Apr 2019
Use a numeric vector for Match because cellfun will be passing in the content of the cells
Accepted Answer
Image Analyst
on 20 Apr 2019
Your Match is not a pattern in your "a" so that's why it didn't find it. {21 31 1} is nowhere in a. If it still does not work and you want a simple, intuitive for loop, then try this:
a = { {21 3 1}, {22 32 2}, {21 31 2}, {22 32 1} };
% Define what we want to find
pattern = {21 3 1};
% Instantiate output vector of where matches were found.
matches = false(size(a));
for col = 1 : length(a)
if isequal(a{col}, pattern)
matches(col) = true;
end
end
matches % Show matches in command window.
0 Comments
More Answers (0)
See Also
Categories
Find more on Logical 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!