Clear Filters
Clear Filters

how can I cancel repeated results?

2 views (last 30 days)
Hi
how can I cancel repeated results??? here a function result st
s =
-2 2 -1
s =
-2 -2 1
s =
-2 2 -1
s =
0 0 3
s =
0 0 -3
s =
0 0 3
s =
0 0 -3
here s in the for loop
and unique(s,'rows') doesn't work
I know, because of the 'rows', not change anything here but I want to save same variables in the row...
  4 Comments
Azzi Abdelmalek
Azzi Abdelmalek on 19 May 2013
What do you mean by cancel repeated result. s is a 1x3 array, each step the old s is erased by the new s. post your for loop and explain what is the expected result
frwmetric
frwmetric on 19 May 2013
for example here as you see, 0 0 3 is written two times... in my expectation just one time... here is a a part of my function...
M = [1 1 1; 1 1 -1; 1 -1 1; 1 -1 -1; -1 1 1; -1 1 -1; -1 -1 1; -1 -1 -1];
rowM=zeros(1,3);
for p=1:numel(M)/3
rowM(:)=M(p,:);
s=(rowM.*vector)

Sign in to comment.

Accepted Answer

Andrei Bobrov
Andrei Bobrov on 19 May 2013
s = bsxfun(@times,M,vector);
sout = unique(s,'rows','stable');

More Answers (2)

Azzi Abdelmalek
Azzi Abdelmalek on 19 May 2013
Edited: Azzi Abdelmalek on 19 May 2013
If
s ={{-2 2 -1},{-2 -2 1},{-2 2 -1},{0 0 3},{0 0 -3},{0 0 3},{0 0 -3}}
Then
out=unique(cell2mat(cellfun(@cell2mat,s','un',0)),'rows')
Or if
s ={-2 2 -1;-2 -2 1,;-2 2 -1;0 0 3;0 0 -3;0 0 3;0 0 -3}
Then
out=unique(cell2mat(s),'rows')

Azzi Abdelmalek
Azzi Abdelmalek on 19 May 2013
M = [1 1 1; 1 1 -1; 1 -1 1; 1 -1 -1; -1 1 1; -1 1 -1; -1 -1 1; -1 -1 -1];
rowM=zeros(1,3);
vector=[1 0 1]
for p=1:size(M,1)
rowM(:)=M(p,:);
s{p,1}=(rowM.*vector)
end
out=unique(cell2mat(s),'rows')

Categories

Find more on Loops and Conditional Statements 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!