How to Sort Matrix Rows from Highest to Lowest
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Simplied my problem so it's easier to solve. Let's pretend I have MatrixA that has 2 columns, and I want to sort the rows from highest to lowest depending on the value of the cell in the second column. How would I do this?
I also have a VectorB that starts at 10 and would like to add the value of each row in column 2 of the sorted MatrixA. How would I do this? Note this needs to come after MatrixA is sorted from highest to lowest.
Any suggestions matlab wizards out there? Really want to avoid using loops to make the code inefficient.
%Just creating example of the matrix I want to sort you can ignore this
MatrixA = cell(3,2);
MatrixA{1,1} = "D1";
MatrixA{2,1} = "D2";
MatrixA{3,1} = "D3";
MatrixA{1,2} = 5;
MatrixA{2,2} = 15;
MatrixA{3,2} = 10;
% Creating Vector B based on the already defined values for MatrixA which aren't in order
VectorA = [10 10+MatrixA{1,2} 10+MatrixA{2,2} 10+MatrixA{3,2}];
% How would I sort MatrixA from highest to lowest here and the values of VectorB to be based on the sorted MatrixA?
1 Comment
Stephen23
on 31 Jul 2024 at 6:11
"How would I do this?"
By using a table, which would suit your data better.
Answers (2)
Walter Roberson
on 30 Jul 2024 at 20:33
MatrixA = cell(3,2);
MatrixA{1,1} = "D1";
MatrixA{2,1} = "D2";
MatrixA{3,1} = "D3";
MatrixA{1,2} = 5;
MatrixA{2,2} = 15;
MatrixA{3,2} = 10;
T = cell2table(MatrixA)
sortrows(T, 2, 'descend')
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