added stepwise regression for model selection
added crime data
sourcing SData from file b/c of census package issues on new computer
lines deleted
straight linear model - mixed PCA was just loading heavily on single vars and  full PCA doesn't make sense
straight linear model
loadings in mixed model, heavy on single vars, not much interesting correlation
loadings for mixed model PCA - spreadsheet
backup of old HSData, sourcing from us census package for social data
select 2008-2010 data