Sorting a string according to the values of a vector of type double

조회 수: 4 (최근 30일)
L'O.G.
L'O.G. 2022년 12월 9일
답변: Les Beckham 2022년 12월 9일
I have a vector A with numbers of type double. Two of the values of A are the same, e.g.,
A = [1.1 2.3 4.4 2.3 5.1];
I also have a corresponding string, e.g.,
vegetables = {'carrots' 'lettuce' 'cabbage' 'parsley' 'tomatoes'};
I want to order A in increasing values and re-arrange the string accordingly. If a value appears more than once, as is the case here, how do I make sure it's still counted? So here in this simple example I should end up with:
A = [1.1 2.3 2.3 4.4 5.1];
vegatables={'carrots' 'lettuce' 'parsley' 'cabbage' 'tomatoes'};
I tried to do this by
[~,idx] = ismember(sort(A),A);
vegatables_ordered = vegetables(idx);
A_ordered = sort(A);
But that doesn't get the string right. How do I do this? There won't be duplicate values in all cases, but I want to account for this possibility shown here.

채택된 답변

Les Beckham
Les Beckham 2022년 12월 9일
It should be as simple as this unless I misunderstand what you are expecting.
A = [1.1 2.3 4.4 2.3 5.1];
vegetables = {'carrots' 'lettuce' 'parsley' 'cabbage' 'tomatoes'};
[As,idx] = sort(A)
As = 1×5
1.1000 2.3000 2.3000 4.4000 5.1000
idx = 1×5
1 2 4 3 5
vegetables(idx)
ans = 1×5 cell array
{'carrots'} {'lettuce'} {'cabbage'} {'parsley'} {'tomatoes'}

추가 답변 (1개)

Steven Lord
Steven Lord 2022년 12월 9일
Take a look at the second output from the sort function.

카테고리

Help CenterFile Exchange에서 Install Products에 대해 자세히 알아보기

제품


릴리스

R2021b

Community Treasure Hunt

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

Start Hunting!

Translated by