"adjust.fractionation returns expected adjusted C14 age"
"adjust.background returns expected background-corrected C14 age"
"find.shells returns expected amount of shells"
"weighted_means returns expected weighted mean of selected shells"
"shells.mean returns expected mean of shells"
"point.estimates returns expected point estimates"
"r.calib returns expected random points"
# carbon contents of each fraction, out of 1
# weights for all fractions, e.g., in mg
# ages of all fractions. The unmeasured one is NA
# assuming a bulk age of 150 +- 20 C14 B
"contaminate returns correct updated result"
"Monte Carlo output converges with increasing samples"

weighted_means returns expected weighted mean of selected shells

shells.mean returns expected mean of shells