Concatenate string arrays of different sizes

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Anna Jacobsen 2021-1-22

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https://ww2.mathworks.cn/matlabcentral/answers/723708-concatenate-string-arrays-of-different-sizes

评论： Anna Jacobsen 2021-1-22

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Copying code from my professor for an assignment. I keep on getting the following error:

Error using horzcat

Dimensions of arrays being concatenated are not consistent.

The error makes sense to me given the context, shown below. I have never seen this sort of syntax before. Could this be a typo by my professor? Is it possible to do this?

Here is the code copied verbatim (I have excluded the plotting aspect since it involves a custom function and does not impact the string concatenation issue):

f = [0.5; 1; 1.5; 2];
Imax = 2;
% plot commands
title(['Current:  [',num2str(Imax),'] nA.  Frequency: [',num2str(f),'] kHz.']);

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Answer 1

Walter Roberson 2021-1-22

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It is an error in the code when f is a column vector. It would work if f were a row vector. However it seems more likely that you would be looping and want to index f to get the current value for a title.

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Anna Jacobsen 2021-1-22

Transposing f worked, thanks so much! I think the loop approach makes more sense too–I guess we have to put all of the f values in the title since we're plotting all of their corresponding outputs at once.

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