dyadic downsampling
Y=dyaddown(x,[EVEN_ODD]) Y=dyaddown(M,[EVEN_ODD],[type]) Y=dyaddown(M,[type],[EVEN_ODD])
double vector
double matrix
even or odd integer
downsampling manner, 'r' for row, 'c' for column, and 'm' for row and column simutaneously.
downsampling result
dyaddown is an utility function for dyadic downsampling. if EVEN_ODD is even, even index entries of input will be kept. Otherwise, odd index entries will be kept. Default is even. Optional argumet type is especially for matrix input downsampling.