What does X = [X Y] mean ?

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Bachtiar Muhammad Lubis
Bachtiar Muhammad Lubis on 30 Oct 2018
Answered: Breilyn Bautista on 17 Nov 2019
I have the code approximately like this :
Word =[];
for m = 1 : N
Letter = read_letter(img, num_letters) %read_letter is the file function to correlate my .mat with character image(img) and then determining that img as a letter eg.('a','b' or 'c' ect.)
Word = [Word Letter];
So the question is. Are the values inside of Word variable are letters ? Additional:Does Word variable works like Unary Operation ?
Because i can't access this array to take its values with simple for loop like :
chars = ''; % i dont know whether this is necessary or nah
for m = 1 : length(Word)
if Word(m) == 'a' || Word(m) == 'b'
chars = 'character is a or b !';
  1 Comment
Stephen23 on 30 Oct 2018
Edited: Stephen23 on 30 Oct 2018
"What does X = [X Y] mean"
It is a concatenation operator:
"Does Word variable works like Unary Operation ?"
How can a variable "work like" an operator?

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Accepted Answer

Image Analyst
Image Analyst on 30 Oct 2018
I don't know exactly what read_letter does, but if it returns a character, then Word is a character array - basically a vector (1-D array) of letters.
If you need more help, attach
  1. your .mat file,
  2. your image file, and
  3. your code for the read_letter() function
Image Analyst
Image Analyst on 5 Nov 2018
OK. Not sure why you didn't get an email. It automatically does that. You might want to check your junk mail folder or check the email you have registered here to make sure it's right.
Thanks for doing #3 (attaching code). I'll get notified when you've done #1 and #2.

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More Answers (1)

Breilyn Bautista
Breilyn Bautista on 17 Nov 2019
como se realisa esta operacion en matlad A-[X'Y']


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