Remove similar values from matrix with tolerance value

Help me please. I have this matrix, and I want to remove element (32,11) and (32,14) because it is close with (32,12). Can I do that?

Thank you.

[Azzi Abdelmalek]

You have to explain what is the meaning of close, (32,14) is close to (32,12), what about (37,20), is it close too ?

don't post your data as an image, we can't copy your data for testing

[Dina Maulina]

Thanks for your reply. This is the data.

X=[32 42; 32 11; 32 12; 62 12; 38 41; 42 42; 33 11; 36 12; 32 36; 32 39; 62 31; 62 36; 32 14; 32 17; 62 16; 62 21]

And what I mean with close is, it has same value in 1st column but has few difference in 2nd column, like [32 11] and [32 12].

[Guillaume]

a few difference is not something easy to code. Computers are not able to read your mind or guess what a few difference is. Is 1 a few? Is 10 a few? Is 0.1 a few? Is 1 million a few (it might be compared to the number of atoms in the universe)?

An actual numeric tolerance (relative or absolute), on the other hand, is very easy to code.

[Dina Maulina]

Yes, I use tolerance right now. And looking for possibility of easier answers.

Anyway, thanks for enlighten me.

Answer 1

[KSSV]

Read about pdist2. This will give pairwise distance . Now remove the points which you want to rmove by setting a tolerance in distance.