Use read.csv to load the file specified by the input file_name (file_name can also be the full path to the file). The inputs phi_m_col, sig_m_col, trc_m_col, and sig_trc_m_col specify which columns contain the radiocarbon data. All are optional, but only three patterns of inputs are valid:
(1) If none of the column specifiers are given, it is assumed that the first column in the .csv file contains trc_m and the second column contains sig_trc_m. (2) If trc_m_col and sig_trc_m_col are given, phi_m_col and sig_m_col must not be given. (3) If phi_m_col and sig_m_col are given, trc_m_col and sig_trc_m_col must not be given.
import_rc_data( file_name, trc_m_col = NA, sig_trc_m_col = NA, phi_m_col = NA, sig_m_col = NA, ... )
| file_name | The file name of the input .csv file (or full path to the file if not located in the current directory) |
|---|---|
| trc_m_col | The column containing the radiocarbon years values (optional, but see details). |
| phi_m_col | The column containing the fraction modern values (optional, but see details). |
| sig_m_col | The column containing the error for the radiocarbon year values (optional, but see details) |
| ... | Additional arguments to pass to read.csv (e.g., skip=2 would skip the first two lines when reading the .csv file) |
A list with four named entries, each a vector equal to the number of samples: phi_m, the fraction modern values; sig_m, the error for phi_m; trc_m, a vector of uncalibrated radiocarbon years; and sig_trc_m, the error for trc_m.