DataFrameJoinVisitors::DataFrameJoinVisitors(const DataFrame& left_, const DataFrame& right_, const SymbolVector& names_left, const SymbolVector& names_right, bool warn_, bool na_match) :
left(left_), right(right_),
visitor_names_left(names_left),
visitor_names_right(names_right),
visitors(names_left.size()),
warn(warn_)
{
IntegerVector indices_left = names_left.match_in_table(RCPP_GET_NAMES(left));
IntegerVector indices_right = names_right.match_in_table(RCPP_GET_NAMES(right));
const int nvisitors = indices_left.size();
if (indices_right.size() != nvisitors) {
stop("Different size of join column index vectors");
}
for (int i = 0; i < nvisitors; i++) {
const SymbolString& name_left = names_left[i];
const SymbolString& name_right = names_right[i];
if (indices_left[i] == NA_INTEGER) {
stop("'%s' column not found in lhs, cannot join", name_left.get_utf8_cstring());
}
if (indices_right[i] == NA_INTEGER) {
stop("'%s' column not found in rhs, cannot join", name_right.get_utf8_cstring());
}
visitors[i] =
join_visitor(
Column(left[indices_left[i] - 1], name_left),
Column(right[indices_right[i] - 1], name_right),
warn, na_match
);
}
}
DataFrameJoinVisitors::DataFrameJoinVisitors(const Rcpp::DataFrame& left_, const Rcpp::DataFrame& right_, Rcpp::CharacterVector names_left, Rcpp::CharacterVector names_right, bool warn_ ) :
left(left_), right(right_),
visitor_names_left(names_left),
visitor_names_right(names_right),
nvisitors(names_left.size()),
visitors(nvisitors),
warn(warn_)
{
std::string name_left, name_right ;
IntegerVector indices_left = Language( "match", names_left, RCPP_GET_NAMES(left) ).fast_eval() ;
IntegerVector indices_right = Language( "match", names_right, RCPP_GET_NAMES(right) ).fast_eval() ;
for( int i=0; i<nvisitors; i++){
name_left = names_left[i] ;
name_right = names_right[i] ;
if( indices_left[i] == NA_INTEGER ){
stop( "'%s' column not found in lhs, cannot join" ) ;
}
if( indices_right[i] == NA_INTEGER ){
stop( "'%s' column not found in rhs, cannot join" ) ;
}
visitors[i] = join_visitor( left[indices_left[i]-1], right[indices_right[i]-1], name_left, name_right, warn ) ;
}
}
DataFrameJoinVisitors::DataFrameJoinVisitors(const Rcpp::DataFrame& left_, const Rcpp::DataFrame& right_, Rcpp::CharacterVector names_left, Rcpp::CharacterVector names_right, bool warn_ ) :
left(left_), right(right_),
visitor_names_left(names_left),
visitor_names_right(names_right),
nvisitors(names_left.size()),
visitors(nvisitors),
warn(warn_)
{
std::string name_left, name_right ;
for( int i=0; i<nvisitors; i++){
name_left = names_left[i] ;
name_right = names_right[i] ;
try{
visitors[i] = join_visitor( left[name_left], right[name_right], name_left, name_right, warn ) ;
} catch( const std::exception& ex ){
stop( "cannot join on columns '%s' x '%s': %s ", name_left, name_right, ex.what() ) ;
} catch( ... ){
stop( "cannot join on columns '%s' x '%s'", name_left, name_right ) ;
}
}
}
DataFrameJoinVisitors::DataFrameJoinVisitors(
const DataFrame& left_, const DataFrame& right_,
const IntegerVector& indices_left, const IntegerVector& indices_right,
bool warn_, bool na_match
) :
left(left_), right(right_),
visitor_names_left(),
visitor_names_right(),
visitors(indices_left.size()),
warn(warn_)
{
if (indices_right.size() != size()) {
stop("Different size of join column index vectors");
}
SymbolVector left_names = left.names();
SymbolVector right_names = right.names();
for (int i = 0; i < size(); i++) {
const int index_left = indices_left[i];
const int index_right = indices_right[i];
check_range_one_based(index_left, left.size());
check_range_one_based(index_right, right.size());
const SymbolString& name_left = left_names[index_left - 1];
const SymbolString& name_right = right_names[index_right - 1];
visitors[i] =
join_visitor(
Column(left[index_left - 1], name_left),
Column(right[index_right - 1], name_right),
warn, na_match
);
visitor_names_left.push_back(name_left);
visitor_names_right.push_back(name_right);
}
}
