comparing two matrix

A = 000010000000100070007000000013543570107013507135071213571357121357135713221223671323672322222223322222222223222232222222212222222223222222322222222222223222222132223222223672222236710123567223667213657223667223667213223213223213213650721076507657650076600725443444654344446544444444444635723671350070107013544444

a = 010000001070000070000135434507107234607232367236723232223232322232323232223222322222323222223222222332222222223222222223222223222212232222132212221323211355721365721365721365710135572136547254365071001355071000107100000000704

i need a method to use to compare this two matrix... like in pattern mining... i do not need it to find exactly the same match.... but more like 70% match, taking the sequence into little consideration

[Andrew Newell]

That is a far from trivial problem, and there doesn't seem to be any MATLAB code for it. I recommend you do a search on "pattern mining algorithms" and then implement an algorithm in MATLAB.

[Walter Roberson]

Another term to look up is "fuzzy pattern matching".

Answer 1

[Oyinda]

thanks for the hint the both of you (Andrew Newell, Walter Roberson) i decided to use Levenshtein distance

Answer 2

[do]

Is there any comparation operator applied for matrixs, like the dot operator '.*', './', '.^' Hi, I have function f like this function z=f(x,y) if(x<1 & y <1) z=0; else z=1; end end And a script x=0:0.1:2; y=0:0.1:2; [X,Y]=meshgrid(x,y); Z=f(X,Y); mesh(X,Y,Z); When running this script, I got this errors: Z must be a matrix, not a scalar or vector.

It's because x and y here are two arrays, not scalar value. The script can run if I change the function f looks like this: function z = f( x,y ) for i=1:size(x,2) for j=1:size(y,2) if(x(i)<1 & y(j)<1) z(i,j)=0; else z(i,j)=1; end end end end

The broblem is that the new function runs much slower than the first one. I don't know if there is any comparation operator applied for arrays in this case, like the ".*" operator used in this function function z=f(x,y) z=x.*y; end Thank you very much.

[Oleg Komarov]

ask your question in a separate thread: http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer