Using fprintf for matrix

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Ali
Ali 2016-5-30
回答： Ambrish Raghav 2020-7-30
I have a matrix with 300 rows and 2 columns. For instance:
1 2
2 4
5 6
and another matrix with 300 rows and 1 column: for instance:
1
3
4
I want to convert them in the following:
-1: 1 2
-3: 2 4
-4: 5 6
It would be appreciated if you could help me. Thanks

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采纳的回答

Stephen23
Stephen23 2016-5-30
编辑：Stephen23 2016-5-30
>> X = [1,2;2,4;5,6];
>> Y = [1;3;4];
>> fprintf('-%d: %d %d\n', [Y,X].')
-1: 1 2
-3: 2 4
-4: 5 6
It is worth reading the fprintf documentation carefully, to see how it handles matrices (columnwise!) and to pick the best format string for your requirements.

更多回答（1 个）

Ambrish Raghav
Ambrish Raghav 2020-7-30
X = [1,2;2,4;5,6];
>> Y = [1;3;4];
>> fprintf('-%d: %d %d\n', [Y,X].')
-1: 1 2
-3: 2 4
-4: 5 6

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