function [y] =  boxcar (m)
//This function returns the filter coefficients of a rectangular window.
//Calling Sequence
//y =  boxcar (m)
//Parameters 
//m: positive integer value
//y: output variable, vector of real numbers 
//Description
//This is an Octave function.
//This function returns the filter coefficients of a rectangular window of length m supplied as input, to the output vector y.
//Examples
//boxcar(6)
//ans  =
//    1.  
//    1.  
//    1.  
//    1.  
//    1.  
//    1.  

rhs = argn(2)
if(rhs~=1)
error("Wrong number of input arguments.")
end

y = callOctave("boxcar",m)

endfunction