Concatenate string arrays of different sizes

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.']);

Answer 1

[Walter Roberson]

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.

[Anna Jacobsen]

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.