multi choice validate attributes

Question

Benoit Botton 2014-7-1

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/139653-multi-choice-validate-attributes

评论： Benoit Botton 2014-7-3

采纳的回答： Geoff Hayes

Hi,

I am trying to validate attributes for a function. one of the parameters can ba scalar or vector so i wrote:

validateattributes( offsetChange, {'numeric'}, {'scalar', 'column', 'row', 'nonempty'})

if I pass a scalar to the function, no problem. If I pass a vector, I get: Expected input number 3, offsetChange, to be a scalar.

is there a way to use validateatrributes the way I want, or do I need to revert to if statements?

thank you

Benoit

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Answer 1

Geoff Hayes 2014-7-3

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https://ww2.mathworks.cn/matlabcentral/answers/139653-multi-choice-validate-attributes#answer_143469

在 MATLAB Online 中打开

Check the attributes section of http://www.mathworks.com/help/matlab/ref/validateattributes.html and look at

'vector' Row or column vector, or a scalar value

With just this attribute, you can replace the three in your function call and evaluate the way you want

 offsetchange = 43;
 validateattributes( offsetchange, {'numeric'}, {'vector','nonempty'})
 offsetchange = [1 2 3];
 validateattributes( offsetchange, {'numeric'}, {'vector','nonempty'})
 offsetchange = [1 2 3 4 5 6]';
 validateattributes( offsetchange, {'numeric'}, {'vector','nonempty'})
 offsetchange = [1 2 3; 4 5 6];
 validateattributes( offsetchange, {'numeric'}, {'vector','nonempty'})
    Expected input to be a vector.