spfit1.f
Fortran program for fitting spatial models

mapusa.i
Sample map drawing program in R

texas.d
Texas aquifer data

texas.sas
SAS code for data and variogram plots of Texas aquifer data (first download above file texas.d; modify the "infile" statement to give the correct path to this file on your computer)

davis.d
Davis's data on topographical heights

mintemp.d.txt
Data set on trends in minimum temperatures

mintemp.cor

ozone8hr
Data set of 8-hour ozone-mortality coefficients and standard errors

gamso2.d
Data set on trends in SO2 concentrations

gamso2.cor
Correlation matrix for SO2 trends data set

usagrid
Grid of interpolation points within continental USA

egrid
Version of usagrid for eastern USA (use with gamso2.d data set)

ma.208
Grid points for mid-Atlantic region

mw.205
Grid points for mid-west region

so.239
Grid points for South region

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