How to calculate average

Question

Dhawal Beohar 2019-7-10

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/471140-how-to-calculate-average

评论： Dhawal Beohar 2019-7-21

Hi. I have an equation below for which I need to calculate the average value for mu_o.

First, by calculating the sum of it, and secondly by dividing it with no of iterations, but I am unable to do it. Please help it's urgent!

I am doing for mu_o the same as I have calculated the average for EHH but I am not getting correct values.

rt=2;
NoB=1;
Pmax=100;
EHH(i)=0;
mu_o(i)=0[
for j=1:100000
    mu_o(i)= mu_o(i)+ min((((exp(rt)-1)*NoB)./r),Pmax);
    EHH(i)=EHH(i)+exp(ii*mu_o);
end
EHHH_avg(i)=(EHH(i))/100000;  
mufix(i)=(1/ii)*log(EHHH_avg(i));
mu_o_avg(i)=(mu_o(i))/100000;
Epsilon=((mu_o_avg(i))/mufix(i));

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Answer 1

Image Analyst 2019-7-10

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/471140-how-to-calculate-average#answer_382756

编辑：Image Analyst 2019-7-10

在 MATLAB Online 中打开

Did you try using sum()?

EHHH_avg = sum(EHH) / 100000;

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Dhawal Beohar 2019-7-11

编辑：Image Analyst 2019-7-11

在 MATLAB Online 中打开

clc
clear 
NoB=1;                  % Noise Density
rt=0.5;                   % Rate in bits/sec
EH=0;                   % Initialising Energy Harvesting
Bmax= 50;               % Threshold level of battery in Joules
Bslot= 3;               % Energy threshold in Joules
 
Pout=[0.001:0.001:0.1];
QoS_Component_u=[0.001:0.001:0.1];
 
for i=1:length(QoS_Component_u)
    u=QoS_Component_u(i);
    
    Pmax=100;   
    EHH(i)=0;   
    muo_sum(i)=0;  
        
    for j=1:100000  
       
        hx=(1/sqrt(2))*randn(1,1);
        hy=(1/sqrt(2))*randn(1,1);
        ht_rayleigh=hx.^2+hy.^2;  
 
        muo=min((((exp(rt)-1)*NoB)./ht_rayleigh),Pmax); 
        
        muo_sum(i)=muo_sum(i)+muo; 
     
        EHH(i)=EHH(i)+exp(u*muo); 
        
     end
       
    EHHH(i)=(EHH(i))/100000;  
    
    mufix(i)=(1/u)*log(EHHH(i));
         
    mu_o_avg(i)=(muo_sum(i))/100000;  
    
    Epsilon(i)=((mu_o_avg(i))/mufix(i));
    
    Pout(i)= (Epsilon(i)*(exp(-u*(mufix(i))*(Bmax-Bslot))));    
    
end
plot(QoS_Component_u,Pout);
grid on;
hold on;
title('Comparison between Pout and QoS Component u');
xlabel('QoS Component u');
ylabel('Pout');

This is my complete code where i need to calculate the average of muo,and i am calculating it by calculating summation and then by dividing it by iterations.I want to do it this way and not by using sum function.

Also everytime it is giving me different values for muo,why?

Please Help.

Image Analyst 2019-7-20

在 MATLAB Online 中打开

See if this works for you:

clc
clear
close all;
fprintf('Working...\n');
NoB=1;                  % Noise Density
rt=0.5;                 % Rate in bits/sec
EH=0;                   % Initialising Energy Harvesting
Bmax= 50;               % Threshold level of battery in Joules
Bslot= 3;               % Energy threshold in Joules
Pout=[0.001:0.001:0.1];
QoS_Component_u=[0.001:0.001:0.1];
maxj = 100000;
for i=1:length(QoS_Component_u)
	u=QoS_Component_u(i);
	Pmax=100;
	muo = zeros(1, maxj);
	EHH = zeros(1, maxj);
	for j = 1 : maxj
		hx=(1/sqrt(2))*randn(1,1);
		hy=(1/sqrt(2))*randn(1,1);
		ht_rayleigh = hx.^2 + hy.^2;
		muo(i) = min((((exp(rt)-1)*NoB)./ht_rayleigh),Pmax);
		EHH(i) = EHH(i)+exp(u*muo(i));
	end
	EHHH(i)= mean(EHH);
	mufix(i)=(1/u)*log(EHHH(i));
	mu_o_avg(i)= mean(muo);
	Epsilon(i)=((mu_o_avg(i))/mufix(i));
	Pout(i)= (Epsilon(i)*(exp(-u*(mufix(i))*(Bmax-Bslot))));
end
plot(QoS_Component_u, Pout, 'LineWidth', 2);
grid on;
hold on;
title('Comparison between Pout and QoS Component u', 'FontSize', 13);
xlabel('QoS Component u', 'FontSize', 13);
ylabel('Pout', 'FontSize', 13);
fprintf('Done!\n');