.generic_selector | R Documentation |
.generic_selector(variable_column, select_column, select_expr, fun_name)
.is_selector_scoped(variable_column, select_column)
variable_column |
string indicating column variable names are stored |
select_column |
character vector of columns used in the |
select_expr |
unquoted predicate command to subset a data frame to select variables |
fun_name |
quoted name of function where |
.is_selector_scoped()
checks if a selector has been properly registered
in env_variable_type$df_var_info
.
custom selector functions
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