How to convert sequence of numbers into text and display on screen

I am using MATLAB R2020a Psychtoolbox on Mac OS. I am trying to display sequences of numbers generated from a random Gaussian distribution and have tried 'num2str' and 'char' functions but these haven't worked. These are the sequences. The 'dis' function generates the numbers.

% Define sequences
seq1 = dis(20, 10, 100, 0, 5); 
    seq2 = dis(10, 10, 100, 0, 5); 
    seq3 = dis(10, 10, 100, 0, 5); 

% dis function
function x = dis(va, mu, ul, ll, nvals)
n = makedist('normal','mu',mu,'sigma',sqrt(va));
t = truncate(n,ll,ul);
x = round(random(t,nvals,1));
end

[Adam Danz]

Why didn't num2str work?

Also see sprintf and fprintf.

Where will the numbers appear? In a figure? In the command window?

[Cai Chin]

Thanks! I'm trying to get the numbers to be displayed on a separate window as part of Psychtoolbox. However, now all the numbers are displayed together - how can I display them with spaces in between each number?

[Sara Boznik]

\n have to be used when you want new line

[Image Analyst]

Do you mean like

seq1 = [1, 2, 3, 4] % Whatever...
str = sprintf('%.4f, ', seq1) % Turn numbers into string with a comma and space after each number.
str = str(1:end-2) % Get rid of trailing comma and space.

[Adam Danz]

I haven't used psych toolbox so I don't know anything about where these text objects should go. What is a "separate window", is it a figure? "all the numbers are displayed together" - where? what does that look like?

[Adam Danz]

To add space between the numbers,

sprintf('%.4f          ', rand(1,5))

Another approach, although much less efficient,

str = num2str(rand(1,5)); 
strSpace = regexprep(str, ' +', '          ')

[Cai Chin]

Thanks, that worked perfectly. In Psychtoolbox, when you enter the script name into the command window, the screen becomes blank and the background changes to a specified colour. I was then displaying sequences of numbers in a virtual triangle, each number separated by a space.