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Index exceeds matrix dimensions for 5 dimensional matrix

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Andrew Alkiviades
Andrew Alkiviades on 27 Jul 2012
Hi I have the following code with the error "Index exceeds matrix dimensions" on the line of the "if statement" and I can't figure out why?!
My code is
for idx_number_panels = 1:length(number_panels)
for number_turbines = 1:2 % range of wind turbine units examined
for number_batteries = 1:10 % range of battery units examined
for h=2:25 %# hours
for d = 1:number_of_days %# which day
n = h + 24*(d-1);
hourly_surplus(idx_number_panels , number_turbines+1 ,number_batteries, h,d) = (hourly_total_RES(idx_number_panels,number_turbines + 1,number_batteries, h,d))-hourly_annual_demand(n);% hourly power deficit (RES supply with demand)
if hourly_surplus(idx_number_panels, number_turbines+1 ,number_batteries, h,d)< 0 % zero out negative hourly deficit values (this is power surplus from RES)
hourly_surplus(idx_number_panels, number_turbines+1 ,number_batteries, h,d) = 0;
battery_position(idx_number_panels, number_turbines+1 ,number_batteries, h,d) = 0;
input_energy_flow(idx_number_panels, number_turbines+1 ,number_batteries, h,d) = 0;
output_energy_demand(idx_number_panels, number_turbines+1 ,number_batteries, h,d) =hourly_deficit(idx_number_panels, number_turbines+1 ,number_batteries, h,d) ;
else
battery_position(idx_number_panels, number_turbines+1 ,number_batteries, h,d) = 1;
input_energy_flow(idx_number_panels, number_turbines+1 ,number_batteries, h,d) = hourly_surplus(idx_number_panels, number_turbines+1 ,number_batteries, h,d) ;
end
battery_capacity(:, : ,:, 1,1) = 2*number_batteries;
if (max_battery_capacity*number_batteries) - (battery_capacity(idx_number_panels, number_turbines+1 ,number_batteries, h-1,d)) >0
storage_availability(idx_number_panels, number_turbines+1 ,number_batteries, h,d) = maybe(idx_number_panels, number_turbines+1 ,number_batteries, h,d) else
storage_availability(idx_number_panels, number_turbines+1 ,number_batteries, h,d) = 0;
end

  2 Comments

Andrew Alkiviades
Andrew Alkiviades on 27 Jul 2012
the error is on the if statement
if (max_battery_capacity*number_batteries) - (battery_capacity(idx_number_panels, number_turbines+1 ,number_batteries, h-1,d)) >0

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Answers (1)

Sean de Wolski
Sean de Wolski on 27 Jul 2012
dbstop if error
Then run the code using the play button or from the command line. It will stop with the debugger on the offending line with the offensive variables so you can figure out what's wrong.

  6 Comments

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Sean de Wolski
Sean de Wolski on 27 Jul 2012
No. But I have no idea what your variables are. I think Jonathan's approach here is the right one. It stops on that line - inspect every variable and command used on that line to investigate. For example if I had:
y = f(x(ii+1))+k(ii)
I would run:
k(ii)
x(ii+1)
f(x(ii+1))
%etc.
Andrew Alkiviades
Andrew Alkiviades on 27 Jul 2012
Thanks I get all sizes as a 1 and so is the "sz" . The day "d" which is the fifth dimension is a 2. I don't see how I can do anything about this
Andrew Alkiviades
Andrew Alkiviades on 27 Jul 2012
if I change the " for number_turbines " loop on the second line of my code to start from zero then the error is on the fifth dimension. If I have the "for number_turbines" loop starting from 1 then I have the error on the second dimension i.e the "number_turbines".

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