How to put a string in a cell array ?

well, i ave a cell called UJourney{1,1} . and i want to put in UJourney{1,1}(:,5) string called 'accept' or 'reject'.

 UJourney{1,1} (:,5)={'accepted'}  this is wat i m doing but its not working , thanks for attention .

[Walter Roberson]

Is UJourney a cell array that contains cell arrays? And you want to set the first 5 cells of UJourney{1,1} to all be the string 'accepted' ??

[Bret]

nope i want to add in the 5th colums in Ujourney{1,1} the string 'accepted'

[Walter Roberson]

What data type is Ujourney{1,1} expected to be? The only data type that you can store strings in is cell arrays. If Ujourney{1,1} is expected to be a character array then you cannot put a string into a particular column of a character array: strings are row vectors, not column vectors. Are you trying to put 'accepted' into multiple rows of a character array, starting at column 5 of each row? If so then do you want to overwrite the existing characters in column 6 onward or do you want the characters in column 6 onward to be "pushed over" to the right?

Perhaps it would be easier if you gave an example UJourney{1,1} input and desired output.

[Bret]

well , its not problem if i used multiple columns each row to put 'accepted'

here's an example of input and then output i wanna see

Ujourney{1,1}

-0.029 0.634 1 5

-0.251 0.130 1 8

0.046 0.724 1 5

Ujourney{1,1}(:,5:6)='accepted'

-0.029 0.634 1 5 accepted

-0.251 0.130 1 8 accepted

0.046 0.724 1 5 accepted

Answer 1

[Walter Roberson]

T = Ujourney{1,1};
 if ~iscell(T)
   T = num2cell(T);
 end
 T(:,5) = {'accepted'};
 Ujourney{1,1} = T;

Answer 2

[Image Analyst]

Try this:

% Initialize.
% Stuff a 3 by 4 array of doubles 
% into the upper left cell of the cell array.
Ujourney{1,1} = [...
-0.029 0.634 1 5
-0.251 0.130 1 8
0.046 0.724 1 5 ]

% Now begin...
% Extract the double array from that cell
% into a regular numerical matrix.
dblMatrix = Ujourney{1,1}
% Get the number of rows and columns.
[rows columns] = size(dblMatrix)
% Convert the numbers into a character array.
charMatrix = [];
for row = 1 : rows
  % First stick the numbers in.
  thisRowString = sprintf('%10.4f ', dblMatrix(row,:));
  % Now add ' accepted'
  charMatrix = [charMatrix; sprintf('%s accepted', thisRowString)]
end

% Now replace the Ujourney{1,1} cell,
% which currently contains a double array,
% with a cell that contains our 2D character array we just created.
Ujourney{1,1} = charMatrix

[Image Analyst]

Note: Walter's and my code give different things because of the lack of clarity in your description of what you want.

[Bret]

Yea I'm sorry for that , I appreciate your attention .

Answer 3

[Rahul Prajesh]

Its an old question, still i think, I should add my answer to it...

[row,col] = size(str_cell);

str_cell{row,col+1} = string_to_be_added;

[Walter Roberson]

That could be written as

str_cell{end,end+1} = string_to_be_added;

However, your code does not add the string to every row as required by the original question. Your code also requires that str_cell be what is called Ujourney{1,1} in the original question, and your code does not then update Ujourney afterwards. Your code also requires that str_cell, which is to say Ujourney{1,1} be a cell array, which is not the case in the original question: in the original question, Ujourney{1,1} was a numeric array.