What is the simplest way to write header on each column of an array?

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Franck Kamga
Franck Kamga 2015-2-16
编辑： Stephen23 2015-2-16
Here is the format that I know for an array with 2 column, and I would like to improve to a much simplest way.
header = {x column, y column}
fprintf( '%s %s\n', header{:})
M = [(fprintf('%d\n',x)),(fprintf('%1.2E\n',y))];
The problem with this code is it doesn't actually show me the array as 2 column.

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回答（1 个）

Stephen23
Stephen23 2015-2-16
编辑：Stephen23 2015-2-16
If x and y have the same number of elements, try this instead:
fprintf('%d %1.2e\n', [x(:),y(:)].')
Shown here in a complete working example:
>> y = 0:pi/4:pi;
>> x = 1:numel(A);
>> fprintf('%d %1.2e\n', [x(:),y(:)].')
1 0.00e+00
2 7.85e-01
3 1.57e+00
4 2.36e+00
5 3.14e+00
Also note that you have unnecessary parentheses around the fprintf statements, and that according to the documentation, M will contain an array giving the number of bytes printed.

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