How to find the location of a minimum value in cell array?

3 ビュー (過去 30 日間)
Matt Learner
Matt Learner 2012 年 11 月 28 日
コメント済み: Walter Roberson 2015 年 8 月 26 日
consider the following example, Suppose if I have a cell notation
q=cell(5,1);
And if I have different dimensions for each cell, for example
q{1} = [6 7 9 4 0 0 1 2 3 1];
q{2} = [3 5 0 4 0 0 1 2 8 1];
q{3} = [3 5 0 5 4 3 4 2 6 4 0 0 1 2 8 1];
q{4} = [4 0 0 1 2 8 1];
q{5} = [4 0 0 0 2 8];
Now if I wish to find the latest cell location containing minimum non zero value, How can I find it?
In the above example, minimum non zero value is 1 and it is present in all cells, that is, q{1} q{2} q{3} q{4} except q{5}. So here the latest cell containing 1 is q{4} and 1 is located at 4th and 7th place of q{4}. I wish to get the location details mentioning that value 1 is present in q(4,4) and q(4,7). How can I find that?

採用された回答

Matt Fig
Matt Fig 2012 年 11 月 28 日
L = cellfun(@(x) find(x==1),q,'Un',0);
Now L has all the information you need.
  14 件のコメント
nadia nadi
nadia nadi 2015 年 8 月 26 日
Dear,
if I want to find minimum matrix from this code what should I do. I tried your code but I couldn't fit it to my code. I have many matrices when I want to find the maximum one by using the size I get the right answer but for minimum matrix I got empty matrix. I used this code
for i=1:10
MaxSubmat=load('MaxSubmatfile.txt');
Remind=load('Remindfile.txt');
ee{i}=MaxSubmat;
aa{i}=Remind;
end
[SizeMaxSubmat,MaxSubmat1]=max(cellfun(@(x) size(x,2),ee ))
[SizeRemind, Remind1]=min(cellfun(@(x) size(x,2),aa ))
MaxSub=ee{MaxSubmat1};
Reminder=aa{Remind1};
sizeReminder=size(Reminder,2)
I don't why it give give Reminder=[] and sizeReminder= 0 for while I know is more than one. could you please help me with this code I will appreciate that a lot.
regards, Nadia
Walter Roberson
Walter Roberson 2015 年 8 月 26 日
You are load()'ing the same file each time, and it has no data in it.

サインインしてコメントする。

その他の回答 (1 件)

Vishal Rane
Vishal Rane 2012 年 11 月 28 日
The first thing that comes to mind is
find(q{n} > 0)
It will you give you locations of elements matching the condition ' > 0' in q{n}, else it returns empty.
You could use that to build your logic.
Refer Link for examples on the find command.

カテゴリ

Help Center および File ExchangeLogical についてさらに検索

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by