Display string and variable value in a window in a GUI or different output

Hey everyone, I'm very rusty on my C and matlab skills but basically what i'm trying to do is find a way to display certain variable values in my code to display in a way that when the code is ran i can get my charts, graphs and displayed values all in different figure windows ect. I'm doing a statistics for engineers class and i've wasted more than enough time trying to figure out how to make what i want work so I was hoping someone could provide some guidance on what to do next.

The Problem: In the work space i have a median value labled Median_X and it has a value of 14.545 and the rest of the variables are the same.

Code i've attempted:

msg = '';

msg = sprintf('A=%d\n, Median_X);

msgbox(msg,'Output Params');

===> the display is in the box but it shows up as 14.545000000e.... i don't want that and i can't find a way to force it to just take 3 or 4 sig figs,

What i would like is to display something like in a message box but reads the following:

Parameters of the discrete random variable [X]

Standard Deviation=...

Mean=...

Median=...

Max value X=...

Min value X=...

Any help would be greatly appreciated!

Answer 1

[Robert U]

Hi chris bowman,

there are some issues within the code snippet you provided:

• Matlab does not need an initiation of variables as such (you can delete line 1)
• the closing quotation mark within the char array within msg in line 2 is missing
• the output format '%d' you chose is of type signed integer (sprintf - formatSpec)

In order to overcome these issues code lines might be changed fulfilling your described content:

stdDev = 3.8652e-5;
MeanVal = 15.8694;
Median_X = 14.545;
maxVal = 3862.69843;
minVal = -3.50654e2;

msg = sprintf(['Parameters of the discrete random variable [X]\n\n',...
               'Standard Deviation = %.4g\n',...
               'Mean = %.3f\n',...
               'Median = %.4f\n',...
               'Max value X = %.3f\n',...
               'Min value X = %.4f\n'],...
               stdDev,MeanVal,Median_X,maxVal,minVal);

msgbox(msg,'Output Params');

Kind regards,

Robert

[chris bowman]

Absolutely perfect!!! Thank you so much, spent way too many hours trying to figure out how to make this work and you knocked it out effortlessly. Thank you Robert!

[Robert U]

Thank you for your positive feedback. If you like my answer, please, vote for it by clicking on the "thumb up"-symbol.

In case it serves your needs and answers your question thoroughly, accept it.

Kind regards,

Robert