prep.savgol: Savytzky-Golay filter
Description
Applies Savytzky-Golay filter to the rows of data matrix
Usage
prep.savgol(data, width = 3, porder = 1, dorder = 0)
Arguments
data
a matrix with data values
width
width of the filter window
porder
order of polynomial used for smoothing
dorder
order of derivative to take (0 - no derivative)