Removing non duplicate values from a matrix

Hello,

I have a matrix which is 12x10. Each column has most of the values the same as the other columns however some columns have values which aren't in the other columns. I want matlab to look at a value, compare it with the rest of the columns and then if its seen at least 3 times, keep it, if not remove it.

I tried using a loop, if statement and the any function. However i was not able to do it.

Thank you very much for any help

[Star Strider]

1. Please post your matrix. You’re asking us to guess what it is, and that only rarely produces the Answer you want.

2. Do you want the result to be a matrix or a vector?

[James Wright]

1. Sorry about that.

1.1 1.1 1.1 1.1          
1.7 1.4 1.7 1.5
1.9 1.7 1.9 1.7
2.1 1.9 2.1 1.9

Something like that, as you can see 1.4 and 1.5 aren't repeated, i want to get rid off them.

2. Matrix form

Thank you!

[Jan]

@James: As long as you cannot assure that all columns have the same length after the "getting rid", you cannot create the output as a matrix. So please post, what you expect as output for the posted input.

Answer 1

[Image Analyst]

What does "get rid of" mean to you. Keep in mind that all columns in a matrix must have the same length and all rows must have the same length. So for example you can't just remove 1.4 and 1.5 since row 2 would have only 2 elements while other rows would have 4 elements. You can't do that. You can't have ragged edges on matrixes. You can set them to zero or something but you can't just remove/delete/get rid of them.