MATLAB: Setdiff with reptitions

arrays

i have two array A ,B i need to know all elements that inside A but not B including reptitons ,thx .

Best Answer

Experiment with the ismember (link) funciton or if you are using floating-point numbers, ismembertol (link):

A = randi(9, 1, 10)
B = randi(5, 1, 8)
L = ismember(A, B)
Out = A(L)

or:

Out = A(~L)

depending on the result you want.

Related Solutions

MATLAB: How to remove cells that have two or more occurrences in a file

I created some duplicates to demonstrate this code:

A = {'155809966'
    '6K0809966B'
    '6N0815478B41'
    '6N0815478B41'                      % Duplicated

    '6U0817940'
    '7H0817940A'
    '1H0819055B01C'
    '1H0819055B01C'                     % Duplicated
    '1H0819055C01C'
    '1H0819056'
    '7M0819056'
    '4H1819429A'};
[Bu,~,ix] = unique(A);
Tally = accumarray(ix,1);
Out = Bu(Tally == 1)                    % List Omitting Duplicates

producing (here):

Out =
  8×1 cell array
    {'155809966'    }
    {'1H0819055C01C'}
    {'1H0819056'    }
    {'4H1819429A'   }
    {'6K0809966B'   }
    {'6U0817940'    }
    {'7H0817940A'   }
    {'7M0819056'    }
.

MATLAB: Find the reptition in vector

Its OK.Thanks. if you are still interested:

       2    82    10    16    15    66    76    71    83    44    49
       4    91    28    98    43     4    75     4    70    39    45
       4    13    55    96    92    85    40    28    32    77    65
       1    92    96    49    80    94    66     5    96    80    71
       1    64    97    81    96    68    18    10     4    19    76

I want the prog. to check each element of the first column.if it is not repeted,then take the first k large numbers of the row along with their indices and put them in matrix. if not take the first large k numbers and give them to the first repeat then give the rest to the next one. I think the condition must include sort command

Best Answer

Related Solutions

MATLAB: How to remove cells that have two or more occurrences in a file

MATLAB: Find the reptition in vector

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