What is the problem in simple matrix operation.?
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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..?
2 commentaires
Azzi Abdelmalek
le 23 Nov 2014
Modifié(e) : Azzi Abdelmalek
le 23 Nov 2014
What is the error message?
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Guillaume
le 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 commentaires
Guillaume
le 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');
Plus de réponses (1)
Azzi Abdelmalek
le 23 Nov 2014
Modifié(e) : Azzi Abdelmalek
le 23 Nov 2014
Use curly brackets { }
[~,idx] = sort(in_st{:,2},'descend')
3 commentaires
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