how to add one space to a matrix ?
3 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
am using this code to generate binary matrix dec2bin(rand(50,1)*2^32) but i need to add one space between the matrix element so i can use it for other commands. the output matrix needs space to be useful for other calculation. how to do this?
0 Kommentare
Akzeptierte Antwort
Guillaume
am 9 Nov. 2014
Bearbeitet: Guillaume
am 9 Nov. 2014
The following would work:
m = dec2bin(rand(50,1)*2^32)
mwithspaces = cell2mat(regexprep(num2cell(m, 2),'\d(?=\d)', '$0 '));
I have to ask though, why do you want to do that? It seems like an unnecessary step. I would think that any algorithm that follows is probably going to remove these spaces one way or another.
edit: was missing a bracket
5 Kommentare
Guillaume
am 9 Nov. 2014
As commented on Jan's answer, inserting spaces is a red herring. To convert a string of zeros and ones into a matrix of zeros and ones numbers, simply subtract '0' from the string.
This may be what you're looking for:
M = dec2bin(rand(10, 1) * 2^32);
M = M - '0'; %convert M into an array of numbers 0 or 1
[m, n] = size(M);
M2 = [zeros(m, 3*ceil(n/3)-n), M];
X = xor(xor(M2(:, 1:3:end-2), M2(:, 2:3:end-1)), M2(:, 3:3:end))
Weitere Antworten (2)
Jan
am 9 Nov. 2014
Bearbeitet: Jan
am 9 Nov. 2014
s = dec2bin(rand(50,1)*2^32);
t = repmat(' ', size(s, 1), size(s, 2) * 2 - 1);
t(:, 1:2:end) = s;
2 Kommentare
Guillaume
am 9 Nov. 2014
Bearbeitet: Guillaume
am 9 Nov. 2014
I don't know what CA rule 150 is so why don't you explain it.
It is now clear however, that your original question is a case of xy problem. Looking at your attempted code, you don't need to insert spaces and actually want to operate on numbers rather than strings.
xor certainly does not work with strings.
See comment on my own answer for a possible solution.
yonatan gerufi
am 9 Nov. 2014
see in the "file exchange" :
3 Kommentare
yonatan gerufi
am 9 Nov. 2014
perhaps i misunderstood you.
the code : dec2bin(rand(50,1)*2^32)
gives you string of ones & zeros. you can pad it with ' ' (space), and then you will have space between the elements.
Image Analyst
am 9 Nov. 2014
It gives a 2D character array, not a simple string. I think maybe he wants all those rows concatenated together with a space in between them.
Siehe auch
Kategorien
Mehr zu Characters and Strings finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!