cell merge and print

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Esra Demirbilek
Esra Demirbilek 2022-5-15
评论： Voss 2022-5-16
Hi
I have a problem can you help me?
This is problem;
I have a matrix like below;
45 45 65 65 28 28
1 1 9 2 4 1
9 4 7 2 3 1
this is how i want to do;
45-45 65-65 28-28
1-1 9-2 4-1
9-4 7-2 3-1
So I want to merge both cells into one cell, how can I do it?
thanks advance

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Voss
Voss 2022-5-15
Ran in:
Maybe something like this?
M = [ ...
45 45 65 65 28 28
1 1 9 2 4 1
9 4 7 2 3 1
];
fprintf([repmat('%d-%d\t',1,size(M,2)/2) '\n'],M.')
45-45 65-65 28-28 1-1 9-2 4-1 9-4 7-2 3-1
  2 个评论
Esra Demirbilek
Esra Demirbilek 2022-5-16
how can i print to workspace and i want to create a new matrix how can i do
Voss
Voss 2022-5-16
This prints to the command window. Is that what you mean by "print to workspace"?
And what do you want the new matrix to be, for the matrix M given above?

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更多回答（1 个）

dpb
dpb 2022-5-15
Depends upon what you mean by "merge" here...if you want the numeric result, that's
D=-reshape(diff(reshape(M.',2,[])),size(M,2)/2,[]).';
on above sample M array gives
>> D =
0 0 0
0 7 3
5 5 2
>>
NB: The negation operation since diff is X(i+1)-X(i) and the result of the first reshape() to create the 2-row array places the originally even-numbered column as the second row so it's the opposite direction of the way in which you've defined the differences. One could flipud the transpose before diff instead, but simply taking the negative is probably quicker.
If you mean you want to keep the two values but show them in a cell array as a 2-vector, that's for mat2cell() but one presumes that's not the actual Q?

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