You need to store the values of each iteration in a vector, and then display 
the vector after you the loop terminates.  I made a few updates to your code, 
and it seems to do what you want now.

And thanks for including the code.  That made is easy to know how to help.

spectrum = c()
for(f in seq(0,0.5,0.1)) {
        sigmasqaured <- 1
        i = complex(real = 0, imaginary = 1) 
        spectrum <- c(spectrum, 
(sigmasqaured)/(abs(1-2.7607*exp(2*pi*i*f)+3.8106*exp(4*pi*i*f)-2.6535*exp(6*pi*i*f)+0.9258*exp(8*pi*i*f))^2))
}
spectrum

Andrew Miles


On Feb 7, 2012, at 4:08 PM, Jaymin Shah wrote:

> I have mad a for loop to try and output values which i have named spectrum.  
> However, I cannot seem to get the answers to come out as a vector which is 
> what i need. They come out as separate values which I am then unable to join 
> together. Thank you
> 
> for(f in seq(0,0.5,0.1)) {
>       sigmasqaured <- 1
>       i = complex(real = 0, imaginary = 1) 
>       spectrum <- 
> (sigmasqaured)/(abs(1-2.7607*exp(2*pi*i*f)+3.8106*exp(4*pi*i*f)-2.6535*exp(6*pi*i*f)+0.9258*exp(8*pi*i*f))^2)
>         print(spectrum)
> }
>       [[alternative HTML version deleted]]
> 
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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        [[alternative HTML version deleted]]

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