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function w = kaiser (m, varargin)
//This function returns the filter coefficients of a Kaiser window.
//Calling Sequence
//w = kaiser (m)
//w = kaiser (m, beta)
//Parameters
//m: positive integer value
//beta: real scalar value
//w: output variable, vector of real numbers
//Description
//This is an Octave function.
//This function returns the filter coefficients of a Kaiser window of length m supplied as input, to the output vector w.
//The second parameter gives the stop band attenuation of the Fourier transform of the window on derivation.
//Examples
//kaiser(6,0.2)
// ans =
//
// 0.9900745
// 0.9964211
// 0.9996020
// 0.9996020
// 0.9964211
// 0.9900745
funcprot(0);
rhs = argn(2)
if(rhs<1 | rhs>2)
error("Wrong number of input arguments.")
end
if length(varargin)==0 then
bet = 0.5; //default value of beta is 0.5
else
bet = varargin(1);
end
w = window('kr', m, bet) //default value of beta is 0.5
w = w' ;
endfunction
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