[Noob here] I need help with a file exchange which uses MATLAB function

I need help with a File exchange NREL's Solar Position Algorithm (SPA). I understand the code, but I am new to MATLAB funcitons and I do not know how to extract values from this file exchange to my program. If someone could post a simple main.m example showcasing how to extract the values (for eg. azimuth) into the main.m, it would be helpful.

Thanks in advance.

Answer 1

[Cris LaPierre]

The function spa has no outputs. It instead prints the results ot the screen. I would modify the function declaration to return the structure created by the function.

Also note that the clear command is unnecessary in a function.

function [spa] = spa()

spa_const
..
end

You could then access the fields in the structure using dot notation. So a simple main.m might be

my_spa = spa;
my_spa.azimuth_astro

[Leo Daniel A]

Thanks. Like you suggested I modified the code to output the required value and now I am able to get the values.