# Covariance matrix from Rindfuss, Bumpass, and St. John, "Education and
#   fertility: implications for the roles women occupy," American
#   Sociological Review, 1977, 45: 431-447.

Rindfuss <- read.moments(names=c("FatherOcc", "Black", "Sibs", "Farm", "South", 
    "Parents", "Catholic", "Smoking", "Miscarriage", "Education", "FirstBirth"))
456.6769                                                   
 -0.9201  0.0894                                              
-15.8253  0.1416  9.2112                                         
 -3.2442  0.0124  0.3908  0.2209                                    
 -1.3205  0.0451  0.2181  0.0491  0.2294                               
 -0.4631  0.0174 -0.0458 -0.0055  0.0132  0.1498                          
  0.4768 -0.0191  0.0179 -0.0295 -0.0589 -0.0085  0.1772                     
 -0.3143  0.0031  0.0291 -0.0096 -0.0018  0.0089 -0.0014  0.1170                
  0.2356  0.0031  0.0018 -0.0045 -0.0039  0.0021 -0.0003  0.0009  0.0888           
 18.6603 -0.1567 -2.3493 -0.2052 -0.2385 -0.1434 -0.0119 -0.1380  0.0267  5.5696      
 16.2133 -0.2305 -1.4237 -0.2262 -0.3458  0.1752  0.1683 -0.1702  0.2626  3.6580 16.6382