This data was kindly provided by the late V.C. LaMarche, Jr and is the data
used in the paper by Fritts, H.C. et al. (1971) "Multivariate techniques
for specifying tree-growth and climatic relationships and for reconstructing
anomalies in Paleoclimate. Journal of Applied Meteorology, 10, pp.845-864.
The data was produced and assembled at the Tree Ring Laboratory at the
University of Arizona, Tuscon. 

The data can also be studied using Granger causality methods as in W.K. Li
(1981) "Topics in Time Series Modelling", Ch. 8, Ph.D. Thesis, University
of Western Ontario.

Brief Summary Of The Data Files In The Directory mhsets/lamarche

1.  CAMPITO.1
CAMPITO MNT. TREE RING DATA, N=5405 FROM 3435BC TO 1969AD (IN .01 MM)          

2.  PRECIP.1
Mean monthly precipitation, 1907-1972                                          

3.  RING.1
Campito treerings, 1907-1960                                                   

4.  TEMPER.1
Mean monthly temperature, 1907-1972