template<typename T, typename I = unsigned long, typename = typename std::enable_if<std::is_arithmetic<T>::value, T>::type>
struct SampleZScoreVisitor;
|
This is a “single action visitor”, meaning it is passed the whole data vector in one call and you must use the single_action_visit() interface.
This functor class calculates the z-score of a sample against its population. It requires two columns. The first column is taken as population and the seconds column as sample. Its result a single value.
|
T: Column data type.
I: Index type.
|