Calculate reference value point
calculate_reference_point(dat, reference_name, lbs = FALSE)Data frame or list. A tibble or named list of tibbles (input as list())
returned from convert_output.
If inputting a list of tibbles, the first tibble's reference point defined
in ref_line is used to plot a reference line or calculate relative spawning biomass.
String. Name of the reference point (e.g. "spawning biomass msy")
Logical. TRUE/FALSE; indicate whether to convert the y-axis values from kilograms to pounds. The default units match the default in the unit_label argument - 'mt'.
Default: FALSE
the value of the reference point name found in the dat file.