Class enabling to load the list of parameters and select one of them
data
A data.frame
par_selected
A character vector corresponding to par_code
data="data.frame"
the list of parameters
Objects can be created by calls of the form
Other referential objects: charge,ref_choice-method
,
ref_checkbox-class
,
ref_choice-class
,
ref_coe-class
, ref_dc-class
,
ref_df-class
,
ref_horodate-class
,
ref_list-class
,
ref_parqual-class
,
ref_parquan-class
,
ref_period-class
,
ref_stage-class
,
ref_taxa-class
,
ref_year-class