index exceed matrix elements
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i want data=[9 15 3000;
15 18 1800];to replace the one below
% data=[0 6 900;
% 6 7 2400;
% 7 15 3000;
% 15 18 1800;
% 18 22 3000;
% 22 24 1800];
data=[9 15 3000;
15 18 1800];
power=data(:, 3)
Dt=data(:,2) - data(:,1)
Power_Generated=power.*Dt
Total_power1=sum(Power_Generated)
Total_power2=power.*Dt;
DATA=[data(:,1) data(:,2) power];
Average_load=Total_power2/sum(Dt);
peak_load=max(power);
Daily_LF=Average_load/peak_load*100;
Results=[Average_load peak_load*ones(size(Daily_LF)) Daily_LF];
L=length(data);
timeinterval=data(:,1:2) ;
t = sort(reshape(timeinterval,1,2*L));
for n = 1:L
P(2*n-1) = power(n);
P(2*n) = power(n);
end
subplot(2,1,1)
plot(t,P,'b')
xlabel(['Timer, Hr'])
ylabel(['Power, W'])
title('consumed Power, W versus time, hour')
xlim([0 24])
grid on
grid minor
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답변 (2개)
Voss
2023년 7월 11일
Replace this:
L=length(data);
with this:
L=size(data,1);
length(data) gives the size of the longest dimension of data, which is 6 when data is 6-by-3 but is 3 when data is 2-by-3. What you really want is the size of the first dimension, i.e., the number of rows of data, so use size(data,1).
Mathieu NOE
2023년 7월 11일
Code improved below
same mistake found as @Voss
% data=[0 6 900;
% 6 7 2400;
% 7 15 3000;
% 15 18 1800;
% 18 22 3000;
% 22 24 1800];
data=[9 15 3000;
15 18 1800];
power=data(:, 3);
Dt=data(:,2) - data(:,1);
Power_Generated=power.*Dt;
Total_power1=sum(Power_Generated);
% Total_power2=power.*Dt; % same as 2 lines above : Power_Generated=power.*Dt;
% DATA=[data(:,1) data(:,2) power]; % what for ? this is exactly the same
% as array "data" at the beginning of your code
% Average_load=Total_power2/sum(Dt);
Average_load=Power_Generated/sum(Dt);
peak_load=max(power);
Daily_LF=Average_load/peak_load*100;
Results=[Average_load peak_load*ones(size(Daily_LF)) Daily_LF];
L=size(data,1); % get number of rows
timeinterval=data(:,1:2) ;
t = sort(reshape(timeinterval,1,2*L)); % this works
% t = sort(timeinterval(:)); % this works too ! (and is simpler to write)
for n = 1:L
P(2*n-1) = power(n);
P(2*n) = power(n);
end
subplot(2,1,1)
plot(t,P,'b')
xlabel(['Timer, Hr'])
ylabel(['Power, W'])
title('consumed Power, W versus time, hour')
xlim([0 24])
grid on
grid minor
댓글 수: 0
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