#include <DataFrame/DataFrameStatsVisitors.h>
template<typename T, typename I = unsigned long>
struct KthValueVisitor;
// -------------------------------------
template<typename T, typename I = unsigned long>
using kthv_v = KthValueVisitor<T, I>;
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This is a “single action visitor”, meaning it is passed the whole data vector in one call and you must use the single_act_visit() interface.
This functor class finds the Kth element in the given column in linear time.
explicit
KthValueVisitor (std::size_t ke, bool skipnan = true);
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T: Column data type
I: Index type
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