x = MATRIX, representing input data, any numerical type,
RETURN: MATRIX, input with column averages deleted.
Subtracts the average value of each column of a matrix from the respective column. This is equivalent to removing the DC component in each column vector of the input.
Input data is a matrix of any numerical type. Return ttype is always type DOUBLE. Input is coerced to DOUBLE before local processing. The special case of a row vector input is treated as a column vector with row vector return. This function will return 0(zero) for SCALAR input.
Create one cycle of a sinewave. Then add a DC offset to it. Lastly, remove the offset with the delavg() function.
O>x = sin(2*PI*seq(16)/16)
O>y = x + 1.55
O>z = delavg(y)