How can I display matrix with column labels only? (i.e. no row labels)

Hi there

I have a 1300x23 matrix and I want to label CERTAIN columns only (and not rows as well). I'm facing 2 challenges: 1. how to do it? 2. how to do it taking into account that I don't want to label all columns (and, those columns that I want to label aren't consecutive, so I can't use x:y) and I don't want to write the code for every single column that I want to label (which I have the hunch that implies writing a for loop in the end)

Many thanks in advance

Answer 1

[the cyclist]

Here is one way:

x = magic(5);
header = {'Col 1','','Col 3','',''};
xForDisplay = [header; num2cell(x)];
disp(xForDisplay)

[Bianca Elena Ivanof]

THANKS!

[Bianca Elena Ivanof]

could you please be so kind as to explain the rationale of your tiny piece of code? Oddly enough, even though I understand what it does, I don't understand the logic behind it, if that makes sense

[the cyclist]

x is a normal numerical matrix.

header is a cell array where you store text corresponding to the columns you want to label.

xForDisplay is a variable where I combine the header and the numeric variable, using num2cell to convert x to a cell array.

If you haven't used cell arrays, you may want to read about them in the documentation.

[Bianca Elena Ivanof]

yep, now everything's clear. num2cell sounded familiar but when i read about cell arrays i didn't quite understand what the function was doing in practice - everything's clear to me now.

thank you

[the cyclist]

You're welcome. The best form of thanks is to upvote and/or accept an answer, which rewards the contributor and can point future users to useful answers.