How to get rid of spaces between string?

I have to work out a way to remove the spaces in my morse code output. SO far I have something like this:

...
Word=input('Please enter a word:','s');
Word=upper(Word);
Valid=1;
str = ' ';
for Character=Word
switch Character
...
  case ' '
       Code='/';
  otherwise 
       Valid=0;
end

Answer 1

[Mohammad Abouali]

Pam: You have two options:

Option (1) MC_1 ... MC_Z had a white space at end of them. Remove them. If I remember correctly change MC_1='.---- ' to MC_1='.----' , i.e. removing the space at the end. Then there would be no space in to begin with, so there is no need to remove them anymore

Pretty much change this part of your code:

MC_1='.---- '; MC_2='..--- '; MC_3='...-- '; 
MC_4='....- '; MC_5='..... '; MC_6='-.... '; 
MC_7='--... '; MC_8='---.. '; MC_9='----. '; 
MC_0='----- '; MC_A='.- '; MC_B='-... ';
MC_C='-.-. '; MC_D='-.. '; MC_E='. '; 
MC_F='..-. '; MC_G='--. '; MC_H='.... '; 
MC_I='.. '; MC_J='.--- '; MC_K='-.- '; 
MC_L='.-.. '; MC_M='-- '; MC_N='-. ';
MC_O='--- '; MC_P='.--. '; MC_Q='--.- '; 
MC_R='.-. '; MC_S='... '; MC_T='- '; 
MC_U='..- '; MC_V='...- '; MC_W='.-- '; 
MC_X='-..- '; MC_Y='-.-- '; MC_Z='--.. ';

to

    MC_1='.----'; MC_2='..---'; MC_3='...--'; 
    MC_4='....-'; MC_5='.....'; MC_6='-....'; 
    MC_7='--...'; MC_8='---..'; MC_9='----.'; 
    MC_0='-----'; MC_A='.-'; MC_B='-...';
    MC_C='-.-.'; MC_D='-..'; MC_E='.'; 
    MC_F='..-.'; MC_G='--.'; MC_H='....'; 
    MC_I='..'; MC_J='.---'; MC_K='-.-'; 
    MC_L='.-..'; MC_M='--'; MC_N='-.';
    MC_O='---'; MC_P='.--.'; MC_Q='--.-'; 
    MC_R='.-.'; MC_S='...'; MC_T='-'; 
    MC_U='..-'; MC_V='...-'; MC_W='.--'; 
    MC_X='-..-'; MC_Y='-.--'; MC_Z='--..';

If you are still using the code that you asked before.

Option (2) If

Word='-. --- / .... ..'

So it has spaces, the easiest way to remove the spaces is this:

Word=Word(Word~=' ');

[Mohammad Abouali]

Ok, Then I think the best and easiest is to go with option (1). remove any spaces in the definition of MC_1 but keep ' / ' as it is with one space before and another after it.

[Pam]

alright, but will it not show up more than twice when I have more than one space?

[Pam]

I did this:

Word=input('Please enter a word:','s');
Word=upper(Word);
Valid=1;
Word = strtrim(Word);
for Character=Word
switch Character
....

[Mohammad Abouali]

If you have two spaces next to each other you would see ' / / '

you could remove them using something like this:

S='Hello  Hello'; % an string with double space between Hello

subS=' ';
for i=2:numel(S)
 S=strrep(S,subS,' ');
 subS=[subS ' '];
end

After this loop S will not have any repeated spaces. So run that on the input string before passing it to your morse code convertor.

[Pam]

MC_X='-..-';MC_Y='-.--'; MC_Z='--..';
Word=input('Please enter a word:','s');
Word=upper(Word);
Valid=1;
Word2=' ';
subWord2=' ';
for i=2:numel(Word2)
 Word=strrep(Word,subWord2,' ');
 subWord=[subS ' '];
end
for Character=Word
switch Character
    case '1'

I did something like this using that but I still got two // when I input two words with two spaces in between I think I may have used it incorrectly

[Mohammad Abouali]

So change this part of your code:

Word2=' ';
subWord2=' ';
for i=2:numel(Word2)
 Word=strrep(Word,subWord2,' ');
 subWord=[subS ' '];
end

to

Word=strjoin(strsplit(Word));

[Pam]

oh ok thank you this really helps. I was wondering if this could be done in some kind of loop format?

[Mohammad Abouali]

for index=1:length(Word)
      Word(Word==' ') = '';
  end

This part of you code check for spaces and removes them. You do not want to remove spaces. You want to remove double spaces.

[Pam]

Oh I didnt realize I was doing this.I tried out the t=strjoin(strsplit(s)) method and it works but I was trying to do it in a loop form so I would understand it better. Is there anyway to do this in a loop?

[Mohammad Abouali]

subS=' ';
for i=2:numel(S)
 S=strrep(S,subS,' ');
 subS=[subS ' '];
end

loop form

Answer 2

[Guillaume]

The easiest to get rid of extra spaces:

s = 'a   string  with some   weird   spaces   ';
t = strjoin(strsplit(s))

[Mohammad Abouali]

I like this approach.