Find a row with all elements satisfying a condition
10 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Alon Osovsky
am 24 Jun. 2020
Kommentiert: mariajose gomez
am 13 Jul. 2021
I have a matrix that looks something like this:
mat = [20, 3; 43 0; 8 3; 100 3; 3 9];
I want to find the rows of the matrix that all of its elements are satisfying a certain condition. For example, if the condition is:
> 10
The result matrix will be:
[8 3; 3 9];
Because those are the only rows in the matrix that both of their elements are smaller then 10. Is there an easy way to achieve this result? Thanks!
0 Kommentare
Akzeptierte Antwort
Rasul Khan
am 24 Jun. 2020
You can achieve it with a loop. The required matrix will be stored in res
res = []
for i = 1 : size(mat , 1)
if ~any( mat(i , :) > 10 ) % check for the condition , here if any element is > 10, discard the row
res = [res ; mat(i , :)];
end
end
Weitere Antworten (1)
darova
am 24 Jun. 2020
Use logical indexing
mat = [20, 3; 43 0; 8 3; 100 3; 3 9]
ix = sum(mat<10,2)>1;
a1 = mat(ix,:)
0 Kommentare
Siehe auch
Kategorien
Mehr zu Creating and Concatenating Matrices finden Sie in Help Center und File Exchange
Produkte
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!