how i implement this equation.

hey guys,

i am try to implement to loop of follow equation

where Eci is the energy charge by the ith sensor.

[muhammad mazhar]

Ne=9;

foi i= 1:1:100;

for e=1:1:9;

Eci =sum (Eci,Ne,1,9)

end

end

but error appear in the formula which used in loop

[muhammad mazhar]

thanks for reply but after apply loop in statement there be error

Answer 1

[Daniel M]

Why do you want a loop to do this simple equation anyways? Ok here you go...

clearvars;
Ne = 9;
Ni = 100;
Eci = rand(Ni,Ne); % I'm assuming this data exists
Ec = zeros(Ni,1);
for i = 1:Ni
  tmp = 0;
  for e = 1:Ne
    Ec(i) = tmp + Eci(i,e);
  end
end

Or you could just call sum() once to vectorize the code. I will leave that up to you.

[muhammad mazhar]

thanks dear daniel.because of you i have learnt the problem in coding.

Regard:M.Mazhar

Answer 2

[Karim]

This depends on the format of Ec... is it a matrix or cell array?

Assuming Ec is a matrix with "i" rows and "e" columns...

Ec = zeros(c,1);
for i = 1:c
    Ec(i) = sum(Ec_ie(i,:));
end

or in a single line:

Ec = sum(Ec_ie,2);