now sum of degrees returned respects na.rm
kp.degree.estimator no longer takes a weights arg
using `[' instead of subset
removed extraneous comments
minor changes to outline of tests to write
no longer passing weight into kp.degree.estimator
added documentation for package datasets
get.vars doesn't insist on numeric vars anymore
changed from cat() to message(); fixed small bug in add.kp
changed na.rm arg to missing
added skeleton for eventual killworth se estimator
added method to estimate total degree; changed fns from na.rm to missing
recompiled documentation
recompiled doc, cont...
iv defaults to not returning a plot
cosmetic diff
added skeleton for kp estimator tests
optimized kp degree computation w/ missingness
fixed typo introduced during optimization
added a couple of notes to skeleton for kp tests