What is the problem in simple matrix operation.?
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Nimisha
il 23 Nov 2014
Commentato: Azzi Abdelmalek
il 23 Nov 2014
clear all;clc
names = {'A'; 'B'; 'C'; 'D'};
marks = [27; 48; 84; 22];
in_st = {names marks};
in_st = [names num2cell(marks)];
function [op_st1,op_st2] = print_Data(in_st)
in_st = in_st;
[~,idx] = sort(in_st(:,1));
op_st1 = in_st(idx,:)
[~,idx] = sort(in_st(:,2),'descend');
op_st2 = in_st(idx,:)
I want op_st1 in ascending order, and op_st2 in descending order. It works well upto half program, what is the problem in remaining..?
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Azzi Abdelmalek
il 23 Nov 2014
Modificato: Azzi Abdelmalek
il 23 Nov 2014
What is the error message?
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Guillaume
il 23 Nov 2014
As the error message says and the documentation of sort states, you can't use the DIM and MODE arguments when sorting cell arrays.
However, since the descending order is just the reverse of the ascending order, why don't you just flip your first sort?
[~, idx] = sort(in_st(:, 1));
op_st1 = in_st(idx, :);
op_st2 = in_st(flipud(idx), :);
2 Commenti
Guillaume
il 23 Nov 2014
Oh, yes, sorry, I missed that. You can still reverse do what I said but on column 2:
[~, idx] = sort(in_st(:, 2));
op_st2 = in_st(flipud(indx), :);
Or you could convert column 2 to matrix:
[~, idx] = sort(cell2mat(in_st(:, 2)), 'descend');
Più risposte (1)
Azzi Abdelmalek
il 23 Nov 2014
Modificato: Azzi Abdelmalek
il 23 Nov 2014
Use curly brackets { }
[~,idx] = sort(in_st{:,2},'descend')
3 Commenti
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