how to divide a string by every 8 chars?

str = 'sdkidkfl dkfke dkdke dka dkela32566 dsa321434 -6=0df3 302kd903kdl'

then divide it , How to make it ?

Answer 1

[Image Analyst]

Use John D'Errico's allwords: http://www.mathworks.com/matlabcentral/fileexchange/27184-allwords

str = 'sdkidkfl dkfke dkdke dka dkela32566 dsa321434 -6=0df3 302kd903kdl'
allwords(str)

In the command window:

str =
sdkidkfl dkfke dkdke dka dkela32566 dsa321434 -6=0df3 302kd903kdl
ans = 
    'sdkidkfl'    'dkfke'    'dkdke'    'dka'    'dkela32566'    'dsa321434'    '-6=0df3'    '302kd903kdl'

If you want every 8 (or partial if there are not enough), then try this:

counter = 1;
for index = 1 : 8 : length(str)
  lastIndex = min(index+7, length(str));
  ca{counter} = str(index:lastIndex);
  counter = counter + 1;
end
celldisp(ca)

[Roger]

thanks , i have an idea,reshape(str,8[])',how do u think?

[Cedric]

It depends what you mean by "divide". RESHAPE doesn't divide, and you still have to index the relevant row when you want to access a sub-string, e.g. strReshaped(k,:) for sub-string k. Image Analyst's solution divides the input string in chunks (of 8 chars), and stores each chunk in a cell array.

[Roger]

thank u ,it did help me, i have got what i wanted;

[Image Analyst]

your string was not a multiple of 8 so reshape won't work.

[Cedric]

The way I understood the question was that spaces were not separators, and that the OP really needed to extract segments of 8 chars.