Using Structure Array in Loop

Hi, I am trying to create a for loop using data points stored within a structure array. I can't workout how I would do this. I'm new to coding so I tried the following but am getting errors regardless of what I try. Currently my first for loop runs providing me with WINDW1 (which is essentially just the sample rate). I then need to run the loop using each individual sample rate and its corresponding ODBA to calculate ODBA_1sec but it is here I get stuck as I can't workout how to get the loop to sync the right sample rate with its ODBA within the equation.

This is the code which works if I run it individually using my structure array - I change the (3) depending on which sample frequency I want to run with.

%% Smooth the data for activity measures

% Sample rate used change (?) number to indiciate sample frequency 1 = 400; 2=200; 3=100; 4= 50; 5=25
sample_Hz = c_accData(3).sampleRate; %Change to the correct sample rate used

% Calculate the mean ODBA at 1 second intervals.
WINDW1 = 1*sample_Hz;
ODBA_1sec = accumarray(ceil((1:numel(c_accData(3).ODBA))/WINDW1)',c_accData(3).ODBA(:),[],@mean); 

% Display message at the end of this section
disp('Data has been smoothed');

I then tried to make this into a for loop by bringing the structure array into one variable name which I could use within the equations. Matlab errors include

"Error using horzcat

Dimensions of matrices being

concatenated are not

consistent."

and that

"Variavle 'ODBA_Hz' might be set by a non-scalar operator."

sample_Hz = [c_accData(1).sampleRate c_accData(2).sampleRate c_accData(3).sampleRate c_accData(4).sampleRate c_accData(5).sampleRate];

for j = 1:sample_Hz
    WINDW1 = 1*sample_Hz;
end

ODBA_Hz = [c_accData(1).ODBA c_accData(2).ODBA c_accData(3).ODBA c_accData(4).ODBA c_accData(5).ODBA];
for k = 1:ODBA_Hz
    ODBA_1sec = accumarray(ceil((1:numel(ODBA_Hz))/WINDW1)',ODBA_Hz(:),[],@mean); 
    disp('Data has been smoothed');
end

I'm sure it's a simple task just not one I have learnt yet so I hope someone can help. Thanks in advance.

Justine

[Matt J]

Please copy/paste error messages instead of transcribing them by hand (Matlab does not make spelling mistakes like "Variavle") so that we can be sure of their fidelity. Also, please copy/paste the error messages in their entirety.

However, one problem appears to be in the line

for k = 1:ODBA_Hz

Since ODBA_Hz is not a scalar, it is not clear to Matlab what the upper limit of k should be.

[Justine Pearce]

Hi, okay, that makes sense. Do you have any tips on making it work?

Yes, it's because that message wasn't an actual error message it comes up when I hover over a red dash on the right suggesting an issue with my code so I couldn't copy it. Sorry for the typo.

[Matt J]

Do you have any tips on making it work?

Replace ODBA_Hz with the intended scalar value, whatever that is,

for k = 1:kmax