Calculate individual silver eel parameters.
This calcule method for report_silver_eel, will transform data from long (one line per size characteristic, size, weight, eye diameter, pectoral fin measurement, lateral line and constrast) to wide format (one line per silver eel). It will also calculate Durif silvering index and Pankhurst and Fulton's K.
# S4 method for report_silver_eel calcule(object, silent)
An object of class report_silver_eel-class
Boolean, if TRUE, information messages are not displayed, only warnings and errors
An object of class report_silver_eel-class with slot calcdata filled, as a list for each counting device