MATLAB: Random pair data.

arrayrandom

hi, thank you for helping me from my previous problem. i have other problem related to generate random pair between two array data.

for x = 1:5
  y = randi([6,10],1);
  fprintf('%d -> %d\n',x,y);
end

My problem is, the not all y data are used. i want all both x and y data is used. thank you for your help.

Best Answer

"not all y are use". My guess is that you want something like:

    y = 5 + randperm( 5, 5 );
    for x = 1:5
      fprintf('%d -> %d\n', x, y(x) );
    end

Related Solutions

MATLAB: How to specify , n ,the number of random integers

 function r = random(x,y) 
 r = round(x + (y-x).*rand); end

 random = @(x,y)randi([x, y])

function r = randomn(x,y,n) 
r = round(x + (y-x).*rand(n,1));

randomn = @(x,y,n)randi([x y],n,1)

randomn = @(x,y,n)arrayfun(@(i1)random(x , y),(1:n)')

MATLAB: Correlation pairs

I think that You not need doing this. I'm offering the following variant:

LName={'Name1','Name2','Name3'};
Dat={rand(12,1),rand(12,1),rand(12,1)};
d = [LName;Dat];
Data = struct(d{:});
d1 = cell2mat(struct2cell(Data)');
[R,P] = corrcoef(d1);
Correlation = [LName(nchoosek(1:size(R,1),2)) num2cell(nonzeros(tril(R,-1)))]

R = corrcoef([Dat{:}]);
Correlation = [nchoosek(1:size(R,1),2) nonzeros(tril(R,-1))]

Correlation = sparse(tril(R,-1))

ADD eg:

>> LName={'Name1','Name2','Name3' 'Name4'};
Dat={rand(12,1),rand(12,1),rand(12,1),rand(12,1)};
R = corrcoef([Dat{:}])
Correlation = [LName(nchoosek(1:size(R,1),2)) num2cell(nonzeros(tril(R,-1)))]
R =
            1      0.62864      0.50105    -0.066267
      0.62864            1      0.20848   -0.0042032
      0.50105      0.20848            1      0.23383
    -0.066267   -0.0042032      0.23383            1
Correlation = 
    'Name1'    'Name2'    [   0.62864]
    'Name1'    'Name3'    [   0.50105]
    'Name1'    'Name4'    [ -0.066267]
    'Name2'    'Name3'    [   0.20848]
    'Name2'    'Name4'    [-0.0042032]
    'Name3'    'Name4'    [   0.23383]
>>

Best Answer

Related Solutions

MATLAB: How to specify , n ,the number of random integers

MATLAB: Correlation pairs

Related Question