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Vectors must be the same lengths. how to solve this error

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Catherine tadros
Catherine tadros 2019 年 12 月 9 日
Commented: Walter Roberson 2019 年 12 月 9 日
clear;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% PARAMETERS %%%%%%%%%%%%%%%%%%%%%%%%%%%%
%Field Dimensions - x and y maximum (in meters)
xm=100;
ym=100;
%x and y Coordinates of the Sink
sink.x=0.5*xm;
sink.y=0.5*ym;
%Number of Nodes in the field
n=100;
%Optimal Election Probability of a node
%to become cluster head
p=0.1;
%Energy Model (all values in Joules)
%Initial Energy
Eo=0.5;
%Eelec=Etx=Erx
ETX=50*0.000000001;
ERX=50*0.000000001;
%Transmit Amplifier types
Efs=10*0.000000000001;
Emp=0.0013*0.000000000001;
%Data Aggregation Energy
EDA=5*0.000000001;
%Values for Hetereogeneity
%Percentage of nodes than are advanced
m=0.1;
%\alpha
a=1;
%maximum number of rounds
rmax=99;
%%%%%%%%%%%%%%%%%%%%%%%%% END OF PARAMETERS %%%%%%%%%%%%%%%%%%%%%%%%
%Computation of do
do=sqrt(Efs/Emp);
%Creation of the random Sensor Network
figure(1);
for i=1:1:n
S(i).xd=rand(1,1)*xm;
XR(i)=S(i).xd;
S(i).yd=rand(1,1)*ym;
YR(i)=S(i).yd;
S(i).G=0;
%initially there are no cluster heads only nodes
S(i).type='N';
temp_rnd0=i;
%Random Election of Normal Nodes
if (temp_rnd0>=m*n+1)
S(i).E=Eo;
S(i).ENERGY=0;
plot(S(i).xd,S(i).yd,'o');
hold on;
end
%Random Election of Advanced Nodes
if (temp_rnd0<m*n+1)
S(i).E=Eo*(1+a)
S(i).ENERGY=1;
plot(S(i).xd,S(i).yd,'+');
hold on;
end
end
S(n+1).xd=sink.x;
S(n+1).yd=sink.y;
plot(S(n+1).xd,S(n+1).yd,'x');
%First Iteration
figure(1);
flag_first_dead=0;
for r=0:1:rmax
r
%Operation for epoch
if(mod(r, round(1/p) )==0)
for i=1:1:n
S(i).G=0;
S(i).cl=0;
end
end
end
hold off;
%Number of dead nodes
dead=0;
%Number of dead Advanced Nodes
dead_a=0;
%Number of dead Normal Nodes
dead_n=0;
%counter for bit transmitted to Bases Station and to Cluster Heads
packets_TO_BS=0;
packets_TO_CH=0;
%counter for bit transmitted to Bases Station and to Cluster Heads
%per round
PACKETS_TO_CH(r+1)=0;
PACKETS_TO_BS(r+1)=0;
figure(1);
for i=1:1:n
%checking if there is a dead node
if (S(i).E<=0)
plot(S(i).xd,S(i).yd,'red .');
dead=dead+1;
if(S(i).ENERGY==1)
dead_a=dead_a+1;
end
if(S(i).ENERGY==0)
dead_n=dead_n+1;
end
hold on;
end
if S(i).E>0
S(i).type='N';
if (S(i).ENERGY==0)
plot(S(i).xd,S(i).yd,'o');
end
if (S(i).ENERGY==1)
plot(S(i).xd,S(i).yd,'+');
end
hold on;
end
end
plot(S(n+1).xd,S(n+1).yd,'x');
STATISTICS(r+1).DEAD=dead;
DEAD(r+1)=dead;
DEAD_N(r+1)=dead_n;
DEAD_A(r+1)=dead_a;
%When the first node dies
if (dead==1)
if(flag_first_dead==0)
first_dead=r
flag_first_dead=1;
end
end
for i=1:1:n
if(S(i).E>0)
temp_rand=rand;
if ( (S(i).G)<=0)
%Election of Cluster Heads
hold on;
S(i).xd=rand(1,n)*xm;
S(i).yd=rand(1,n)*ym;
k=100;
CHx=kmeans(S(i).xd,k);
CHy=kmeans(S(i).yd,k);
plot(CHx,CHy,'r*')
packets_TO_BS=packets_TO_BS+1;
PACKETS_TO_BS(r+1)=packets_TO_BS;
distance=sqrt( (S(i).xd-(S(n+1).xd) ).^2 + (S(i).yd-(S(n+1).yd) ).^2 );
%Calculation of Energy dissipated
distance;
if (distance>do)
S(i).E=S(i).E- ( (ETX+EDA).*(4000) + Emp.*4000.*( distance.*distance.*distance.*distance ));
end
if (distance<=do)
S(i).E=S(i).E- ( (ETX+EDA).*(4000) + Efs.*4000.*( distance .* distance ));
end
end
end
sum=0;
for i=1:1:n
if(S(i).E>0)
sum=sum+S(i).E;
end
end
avg=sum/n;
STATISTICS(r+1).AVG=avg;
sum;
end
figure(2);
for r=0:1:99
ylabel('Average Energy of Each Node');
xlabel('Round Number');
plot([r r+1],[STATISTICS(r+1).AVG STATISTICS(r+2).AVG],'blue');
hold on;
end
figure(3);
for r=0:1:249
ylabel('Number of Dead Nodes');
xlabel('Round Number');
plot([r r+1],[STATISTICS(r+1).DEAD STATISTICS(r+2).DEAD],'blue');
hold on;
end
Vectors must be the same lengths.

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件の回答 (1)

Walter Roberson
Walter Roberson 2019 年 12 月 9 日
STATISTICS(r+1).AVG=avg;
r is not changing inside that loop, so you are always overwriting the same location, and all of the other ones come out empty.

  2 件のコメント

Catherine tadros
Catherine tadros 2019 年 12 月 9 日
how to solve this??
Walter Roberson
Walter Roberson 2019 年 12 月 9 日
STATISTICS(i).AVG=avg;

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