bar figure with stacked

y = [11 4 3;8 7 2;11 2 3;7 4 5; 12 2 2;10 3 3; 10 3 1; 7 5 2;11 1 1;4 5 3;7 3 1];
x = categorical({'Python','Java',' C++','Matlab', 'C','C#','Visual Basic','Processing','R','i','o'});
 x = reordercats(x,{'Python','Java',' C++','Matlab', 'C','C#','Visual Basic','Processing','R','p','l'});
bar(x,y,'stacked');

Hi I would like to have stacked for y and x also.

Would you help me in that because it gave error.

Thanks in advance

[Star Strider]

The error is:

Error using categorical/reordercats (line 38)
NEWORDER must be a permutation of the existing categories.

The obvious solution is not to introduce new categories.

[Brave A]

Could explain more?

Answer 1

[Adam Danz]

You've got an error/typo in reordercats().

x = categorical({'Python','Java',' C++','Matlab', 'C','C#','Visual Basic','Processing','R','i','o'});
x = reordercats(x,{'Python','Java',' C++','Matlab', 'C','C#','Visual Basic','Processing','R','p','l'});
% HERE----------------------------------------------------------------------------------------^---^

You can't rename the categories. You can only specify their order.

This works, below.

y = [11 4 3;8 7 2;11 2 3;7 4 5; 12 2 2;10 3 3; 10 3 1; 7 5 2;11 1 1;4 5 3;7 3 1];
x = categorical({'Python','Java',' C++','Matlab', 'C','C#','Visual Basic','Processing','R','i','o'});
x = reordercats(x,{'Python','Java',' C++','Matlab', 'C','C#','Visual Basic','Processing','R','i','o'});
%  ------------------------------------------------------------------------or maybe you want 'o','i'}); ??
bar(x,y,'stacked');

[Brave A]

GOT IT THANKS

[Brave A]

More question; how to rank them without do it manually?

[Adam Danz]

Rank them based on what? Alphabetical order? tallest stacked bar?

[Brave A]

Based on numbers as decen order.

[Brave A]

y = [ 11 4 3;11 2 3 ; 11 1 1; 10 3 1;7 3 1;7 5 2; 12 2 2;10 3 3; 4 5 3 ;8 7 2 ;7 4 5];
% [  ]
[sd,r]=sort(y,'descend')

x = categorical({'Pointers','Basic function calling/program flow','Variable/function declarations','Operators and precedence','Conditional operations','Looping operations ','Scope of variables','Input/and file handling','Arrays','Recursion','String handling'})

bar(x,[sd,r],'stacked'

I tried thid but it's repeat the values and not sorting them.

[Adam Danz]

y is a matrix with 3 columns. What are you sorting? If you're sorting by stacked bar height, you need to sum the rows of y and this will result in the same order as what you've got already.

y = [11 4 3;8 7 2;11 2 3;7 4 5; 12 2 2;10 3 3; 10 3 1; 7 5 2;11 1 1;4 5 3;7 3 1];
x = categorical({'Python','Java',' C++','Matlab', 'C','C#','Visual Basic','Processing','R','i','o'});

[~,r]=sort(sum(y,2),'descend');   % Sum rows of y
x = reordercats(x,cellstr(x(r))); % use reordercats()
bar(x,y(r,:),'stacked');