How do I get a character array to return a sentence stored in a single row character vector?

I am trying to get a character array of "sentence = 'Hello, how are you doing?'." I also am supposed to get an output for a hidden set of words and I have no idea how to go about that. Any help would be appreciated.

function sentence = sentenceMaker(words)
%[sentence] = sentenceMaker(words)
% This function accepts a cell array of words and concatenates them in a
% single character array to define a sentence

[NumberWords, ~] = size(    );             % Write missing code
sentence =    ;                        % Write missing code
for ndx = 2:                          % Write missing code
    sentence = [sentence ' '    ];   % Write missing code
end

% Code to call your function (given):
words = {'Hello,' ; 'how'; 'are'; 'you'; 'doing?'}
sentence = sentenceMaker(words)

Answer 1

[Angelo Yeo]

Hint)

1) The function size returns the size of matrices. E.g., if A = rand(5, 4), then size(A) is equal to [5, 4].

2) An empty vector can be represented as [].

3) To concatenate characters you can put the characters into the square brackets [ ]. E.g., ['Hi, ' ', 'Hello'] becomes 'Hi Hello'.

Answer 2

[Aditya Singh]

Hi Serena,

You need to iterate over the words and then concatnate to the character array.

function sentence = sentenceMaker(words)
%[sentence] = sentenceMaker(words)
% This function accepts a cell array of words and concatenates them in a
% single character array to define a sentence

[NumberWords, ~] = size(words);             % Calculate the number of words
sentence = words{1};                        % Initialize the sentence with the first word

for ndx = 2:NumberWords                      % Loop through the remaining words
    sentence = [sentence ' ' words{ndx}];   % Concatenate each word with a space
end

You can also use strjoin function of MATLAB, to give a one line solution.

For more information please refer to

Join strings in array - MATLAB strjoin - MathWorks India

Hope it helps