Eliminating columns from the matrix

Hello!

I have matrix containing string data and nums.

a=[0 12 13;0 5 4;0 9 6;0 8 9]'
b={'a'; 'b'; 'c'}
fprintf('%5s %5s %5s\n', b{:}); fprintf('%5d %5d %5d\n', a);

output:

    a     b     c
    0    12    13
    0     5     4
    0     9     6
    0     8     9

I want to eliminate the columns which contains all the elements as "0" and also first string corosponding to "0" column.

required output:

    b     c
    12    13
    5     4
    9     6
    8     9

Answer 1

[KSSV]

a=[0 12 13;0 5 4;0 9 6;0 8 9] 

a = 4×3

0 12 13 0 5 4 0 9 6 0 8 9

idx = any(a)==0 ;
a(:,idx)=[]

a = 4×2

12 13 5 4 9 6 8 9

[Karanvir singh Sohal]

Great, but it not gonna remove corresponding string from 'b'

I want

b={'b','c'}

[KSSV]

b={'a'; 'b'; 'c'} ;
b(idx) =[] 

[Karanvir singh Sohal]

Thanks @KSSV