I'm trying to create a function that will only accept a matrix

Question

Hector Koch 2016-3-29

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编辑： Stephen23 2016-3-29

I'm not really sure how to go about this challenge. I know something is wrong with my output and function but I do not really know how to work it etc.

start
function output=rowcolumn(x,y)
if length(x)==length(y) disp('yes')
if length(x)>length(y) disp('no')
if length(x)<length(y) disp('no')
end

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Azzi Abdelmalek 2016-3-29

What is your problem?

Stephen23 2016-3-29

编辑：Stephen23 2016-3-29

Whatever you do avoid using length, as its output chagnes depending on the matrix orientation. Far more robust are numel and size for comparing the dimensions and number of elements.

Avoiding using length will be the first step to more robust code :)

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Answer 1

Star Strider 2016-3-29

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编辑：Star Strider 2016-3-29

在 MATLAB Online 中打开

I guess you’re testing for a vector lengths.

You need to use elseif to test the alternatives:

function output=rowcolumn(x,y)
if length(x)==length(y) disp('yes')
elseif length(x)>length(y) disp('no')
elseif length(x)<length(y) disp('no')
end
end