rocky {wle} | R Documentation |
This data set is the Rockwell Hardness (measured on Rockwell "B" scale) of a sample of 100 steel coins produced in sequence in a Chicago steel mill.
data(rocky)
rocky
is a time serie with 100 elements.
K.W. Hipel and A.I. McLeod (1994), Time series modelling of water resources and environmental systems, Elsevier, Amsterdam.