Tally repeated age reading combinations in a new count column

AgeingError requires a table of data with columns for each reader and rows for each age reading combination, where a count column indicates how many times the age reading combination is repeated. This function tallies the repeated values and adds an initial count column with the tally.

Usage

tally_repeats(dat)

Arguments

dat

Input dataframe or tibble with columns for each reader and rows for each specimen

Author

Ian G. Taylor