Find 3 values equal and consecutive in the row of a matrix.

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Pedro Guevara 2019-5-16

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https://ww2.mathworks.cn/matlabcentral/answers/462540-find-3-values-equal-and-consecutive-in-the-row-of-a-matrix

回答： Raghunandan V 2019-6-6

Goodnight. Disturbing them again with another concern. I have a matrix called "Cons" that in its last row is numbered (which is not necessarily ascending or has a consecutive order, like 1,2,3 ... etc). I want to look for groups of 3 elements (in that row) that are equal and consecutive, so that I can indicate the positions of these groups. It should be noted that the "Cons" matrix is of variable size, and therefore the length of its last row depends on the size of the first. The variable "i" indicates the position of the last row. Below I leave an image to better illustrate the matter

Cons(BC,:)=[ ];

i=i-fila_Col_cero;

Thank you very much to all.

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Image Analyst 2019-5-17

Try diff(). Attach your data in a .mat file if you still need help.

Pedro Guevara 2019-5-17

Hi. thanks for your answer. Reading about the function "diff" I think this could not work, because as I said the row could take any value without necessarily following a consecutive (as if it follows in the image that showed: 1,1,1,2, 2,3,3,3,4,4). What I want to say is that the row can adopt any number as long as it complies with that order, the amount and repetition per group. Example: The row can be 11,11,11,85,85,6,6,6,7,7, and as you observe it complies with the quantity, order and repetition of the example that I mentioned earlier - 1,1,1, 2,2,3,3,3,4,4

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