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How to delete duplicate data

On Programmer » Matlab

1,907 words with 3 Comments; publish: Sat, 10 May 2008 02:48:00 GMT; (200156.25, « »)

Hello everybody,

I would like to know how to delete x-y duplicate values in a

two-dimensional matrix A.

thks in advance

Frederic

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  • 3 Comments
    • frederic wrote:

      > Hello everybody,

      > I would like to know how to delete x-y duplicate values in a

      > two-dimensional matrix A.

      Probably using UNIQUE, but you're going to have to be

      more specific about what you want to do.

      Can you give an example?

      - Randy

      #1; Sat, 10 May 2008 02:49:00 GMT
    • Hello Randy

      Another way, i've got 2 vectors x =[2 1 0.6 4] y=[3 4 5 2]

      the aim is to get another vector z =[x'

      y'];

      but i don't want to duplicate values in z that are in x and y (2,4);

      so z =[2

      1

      0.6

      4

      3

      5];

      Is there a function in Matlab that does this.

      THks

      Frederic

      Randy Poe wrote:

      >

      > frederic wrote:

      > Probably using UNIQUE, but you're going to have to be

      > more specific about what you want to do.

      > Can you give an example?

      > - Randy

      >

      #2; Sat, 10 May 2008 02:51:00 GMT
    • frederic wrote:

      >

      > Hello Randy

      > Another way, i've got 2 vectors x =[2 1 0.6 4] y=[3 4 5 2]

      > the aim is to get another vector z =[x'

      > y'];

      > but i don't want to duplicate values in z that are in x and y

      > (2,4);

      > so z =[2

      > 1

      > 0.6

      > 4

      > 3

      > 5];

      > Is there a function in Matlab that does this.

      > THks

      > Frederic

      Unique does it, but the problem is

      you may need a tolerance on floating

      point values. You can get a tolerance

      with consolidator.

      <http://www.mathworks.com/matlabcent...>

      ectType=file>

      HTH,

      John

      #3; Sat, 10 May 2008 02:51:00 GMT