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setdiff with respect to column values

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RDG
RDG 2013-8-21
关闭： MATLAB Answer Bot 2021-8-20
Suppose I have:
*A ={1 1 1
1 1 3
1 1 4
1 1 1
1 2 1
1 2 3
1 2 4};
B=1:6; %Lists the (complete) values for column 3 in A
  • I inserted a space in between row 4 and 5 for easier viewing.
How can I identify the missing values in column 3 (with respect to column 2)? The range of values of A(:,3) is given in B (From 1-6).
Output should be something similar to this:
C={1 1 2
1 1 5
1 1 6
1 2 2
1 2 5
1 2 6};
  2 个评论
Matt J
Matt J 2013-8-21
编辑：Matt J 2013-8-21
It is not obvious what you consider "missing values" or how you obtained C from A. In particular, the values in C(:,3) are completely different than A(:,3).
dpb
dpb 2013-8-21
Indeed, a literal interpretation as I read it of OP's request would require a cell array and the missing values would look something like
{2:6;
[2 4:6;
[2 3 5 6;
... etc., ...
[1 3 5 6}

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