calcule,report_mig_mult-method: #' Transforms migration per period to daily migrations, and performs the conversion from weights to number is data are stored as weights (glass eel). This calculation is performed in a loop for all dc.

Description

The calculation must be launched once data are filled by the connect method. Currently the negative argument has no effect.

# S4 method for report_mig_mult
calcule(object, negative = FALSE,
  silent = FALSE)

object

negative

a boolean indicating if a separate sum must be done for positive and negative values, if true, positive and negative counts return different rows

silent

Default FALSE, should messages be stopped

report_mig_mult with a list in slot calcdata. For each dc one will find a list with the following elements

method: In the case of instantaneous periods (video counting) the sum of daily values is done by the fun_report_mig_mult method and the value indicated in method is "sum". If any migration monitoring period is longer than a day, then the migration is split using the fun_report_mig_mult_overlaps function and the value indicated in the method is "overlaps" as the latter method uses the overlap package to split migration period.
data: the calculated data.
contient_poids: A boolean which indicates, in the case of glass eel, that the function fun_weight_conversion has been run to convert the weights to numbers using the weight to number coefficients in the database (see linkreport_ge_weight).
negative: A parameter indicating if negative migration (downstream in the case of upstream migration devices) have been converted to positive numbers, not developed yet