How to pick the lowest element for each row by different matrices?
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Diego Rago
am 15 Mär. 2021
Kommentiert: Diego Rago
am 15 Mär. 2021
Hi everyone,
I have the following three matrices (5x2)
a = [41 53; 3 20; 10 40; 11 50; 55.6 111]
b = [19 27.2; 31 10; 2.1 99; 70 55; 7 23]
c = [1 34; 41 10; 11 31; 5 39; 10 22]
I'm looking for the code to create a matrix D (5x2), such that each row is picked by a, b, c with the lowest item in the first column for each row, namely I would like to obtain:
D = [1 34; 3 20; 2.1 99; 5 39; 7 23]
0 Kommentare
Akzeptierte Antwort
KALYAN ACHARJYA
am 15 Mär. 2021
Bearbeitet: KALYAN ACHARJYA
am 15 Mär. 2021
I'm looking for the code to create a matrix D (4x2), such that each row is picked by a, b, c with the lowest item in the first column for each row, namely I would like to obtain:
It might be 3x2 Martix in the given example?
a=
3 20
b=
2.1 99
c=
1 34
One way:
idx_a=find(a(:,1)==min(a(:,1)));
idx_b=find(b(:,1)==min(b(:,1)));
idx_c=find(c(:,1)==min(c(:,1)));
D=[a(idx_a,:);b(idx_b,:);c(idx_c,:)]
D =
3 20
2.1 99
1 34
3 Kommentare
KALYAN ACHARJYA
am 15 Mär. 2021
data=cat(3,a,b,c);
colm1=min(data(:,1,:),[],3);
colm1 =
1
3
2.1
5
7
Get the indices of the corresponding colm1 data, extract the same from the data (column 2). Later I will try on it and provide you the complete answer.
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Creating and Concatenating Matrices finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!