Converting a coloumn of characters into number for logistic regression

I have a coloumn that has Pass or Fail.

I want to assign Pass as 1 and Fail as zero for enntire coloumn.

a=['pass';'fail'; 'pass';'fail';'fail';'pass']

a =

  6×4 char array

    'pass'
    'fail'
    'pass'
    'fail'
    'fail'
    'pass'
    
    %Desired output
 6×4 char array

    1
    0
    1
    0
    0
    1

    % is this code correct???
    for i=1:size(a,1)
if a(i)=='pass'
a(i)=1
else
a(i)=0
end

[Ron Herman]

I am not getting any result in matlab

Answer 1

[Stephen23]

For that character array:

>> v = all(a=='pass',2)
v =
  1
  0
  1
  0
  0
  1

If you really have a cell array of characte vectors use strcmp or strcmpi:

>> c = cellstr(a);
>> v = strcmpi(c,'pass')
v =
  1
  0
  1
  0
  0
  1

[Ron Herman]

Sir I observed that the code is saving it as logical array.

Any line of code to convert it to double or integer type.

[Stephen23]

V = double(V)