Strcat and HuffMan Word Code & GUI

 Hello everyone,

i have a problem with applying something on matlab which is:

for nn=1:a
    stri=character(nn);
    stri=strcat(stri,':');
    stri=strcat(stri,num2str(probabilities(nn)));
    stri=strcat(stri,':')
    stri=strcat(stri,*My Problem In Here*)
    stri=strcat(stri,':');
end

what i want to do is after getting the probability for each alpha and numebers and the spaces and the codeword i want to put them beside each other.

For example:

A:0.342:001100
D:0.432:011011

and so on.....

but when im trying to do that everytime its give me

A:0.342:'             '
D:0.432:'             '

without the codeword

what i have to do im kinda lost and i have to handout this project after tomorrow :S

thank you....

if there is any more information please ask! :)

[Walter Roberson]

Please show us your real code line that you represented here as

stri=strcat(stri,*My Problem In Here*)

Answer 1

[mohamed]

im done now with the GUI is there a way to put :

for nn=1:a
    stri=character(nn);
    stri=strcat(stri,':');
    stri=strcat(stri,num2str(probabilities(nn)));
    stri=strcat(stri,':')
    stri=strcat(stri,num2str(codewords{nn}(length(codewords{nn}):-1:1)))
    stri=strcat(stri,':');
end

i dont want it to be in the same place where the rest of the output i want to be alone with another window like when i use pushbottom i want it to open another window written on it:

A:0.342:001100
D:0.432:011011
K:0.244:10010

[Walter Roberson]

You can use figure() to open a new window. In that new figure, create a uicontrol() of 'Style', 'edit', and 'Enable', 'disabled', and set its 'String' property to the text you want.

Answer 2

[Walter Roberson]

Change

   stri=strcat(stri,codewords(nn))

to

stri=strcat(stri,char('0' + codewords(nn)))

Answer 3

[mohamed]

when i changed it, its giving me this error:

??? Undefined function or method 'plus' for input arguments of type 'cell'.

Error in ==> HuffMan at 101
    stri=strcat(stri,char('0' + codewords(nn)))

[Walter Roberson]

stri=strcat(stri,char('0' + codewords{nn}))

[mohamed]

its working but its kinda flip the answer i don't know if its right to do that or its something wrong see what i mean :

      The symbols, their probabilities and the allocated Huffman codewords are:

        1    0.032258    1  0  1  0  0
        2    0.064516    0  0  1  1
        3    0.16129    1  1  1
        4    0.096774    0  0  0
        5    0.12903    0  1  0
        6    0.032258    1  0  1  0  1
        7    0.064516    0  1  1  0
        8    0.032258    1  0  1  1  0
        9    0.064516    0  1  1  1
        10    0.064516    1  0  0  0
        11    0.032258    1  0  1  1  1
        12    0.032258    1  1  0  0  0
        13    0.032258    1  1  0  0  1
        14    0.032258    1  1  0  1  0
        15    0.032258    1  1  0  1  1
        16    0.064516    1  0  0  1
        17    0.032258    0  0  1  0

stri =

H:0.032258:00101

stri =

e:0.064516:1100

stri =

l:0.16129:111

stri =

o:0.096774:000

stri =

:0.12903:010

stri =

I:0.032258:10101

stri =

m:0.064516:0110

stri =

M:0.032258:01101

stri =

h:0.064516:1110

stri =

a:0.064516:0001

stri =

d:0.032258:11101

stri =

K:0.032258:00011

stri =

i:0.032258:10011

stri =

A:0.032258:01011

stri =

b:0.032258:11011

stri =

u:0.064516:1001

stri =

z:0.032258:0100

Answer 4

[mohamed]

look what i did

i change the old one with this

stri=strcat(stri,num2str(codewords{nn}(length(codewords{nn}):-1:1)))

its giving me this :

-------------------------------------------------------------------------
The symbols, their probabilities and the allocated Huffman codewords are:
1    0.032258    1  0  1  0  0
2    0.064516    0  0  1  1
3    0.16129    1  1  1
4    0.096774    0  0  0
5    0.12903    0  1  0
6    0.032258    1  0  1  0  1
7    0.064516    0  1  1  0
8    0.032258    1  0  1  1  0
9    0.064516    0  1  1  1
10    0.064516    1  0  0  0
11    0.032258    1  0  1  1  1
12    0.032258    1  1  0  0  0
13    0.032258    1  1  0  0  1
14    0.032258    1  1  0  1  0
15    0.032258    1  1  0  1  1
16    0.064516    1  0  0  1
17    0.032258    0  0  1  0

av_length =

      3.8710

entropy =

      3.8457

efficiency =

      0.9935

stri =

H:0.032258:1  0  1  0  0

stri =

e:0.064516:0  0  1  1

stri =

l:0.16129:1  1  1

stri =

o:0.096774:0  0  0

stri =

:0.12903:0  1  0

stri =

I:0.032258:1  0  1  0  1

stri =

m:0.064516:0  1  1  0

stri =

M:0.032258:1  0  1  1  0

stri =

h:0.064516:0  1  1  1

stri =

a:0.064516:1  0  0  0

stri =

d:0.032258:1  0  1  1  1

stri =

K:0.032258:1  1  0  0  0

stri =

i:0.032258:1  1  0  0  1

stri =

A:0.032258:1  1  0  1  0

stri =

b:0.032258:1  1  0  1  1

stri =

u:0.064516:1  0  0  1

stri =

z:0.032258:0  0  1  0

what do u think? is it right like this or it should flip like u send me?

Answer 5

[mohamed]

thank you so much Walter you really helped me alot :)

[Walter Roberson]

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