Creating a loop for multiple year analysis

Hello again,

I have a very long code; it is over 1,000 lines. I am bin averaging and regressing four different meteorological variables (e.g. air temp, PAR, vpd, VWC) against fluxes (e.g. net ecosystem productivity, gross ecosystem productivity, and ecosystem respiration). Rather than writing code for each year individually I am sure there is a way to make this more efficent. If anyone can point me in the right direction or demonstrate how I could write a code to simiplify a multiple year analysis that would be so appreciated.

I've attached my very long code so you can see what I've done.

Thanks in advance!

Lejla

Answer 1

[Prateek]

Hi Lejla,

The data in your code can be indexed to enable processing in loops, which would simplify the code.

For example, the hand-coded “annual growing season timelines” can be stored as an array of cells:

GS{12} = timerange('04/14/2012','10/26/2012','closed');
GS{13} = timerange('04/27/2013','11/04/2013','closed');

And so on.

Thereafter, the “GS variable extraction” can be run in loop:

for i=12:21 
    Ta(i) = TT_Variables.Ta(GS{i},:);
    … 
end

Similarly, other parts of the code can be simplified.

You can refer to these documents for more information:

a) for loop to repeat specified number of times - MATLAB for - MathWorks India

b) Matrices and Arrays - MATLAB & Simulink - MathWorks India

Hope this helps.

Regards,

Prateek