Quantile structure accepts sorted data, extracted from histmaker. More...

#include <quantile.h>

Public Member Functions
void	Init (unsigned max_size)

void	Push (bst_float fvalue, bst_float w, unsigned max_size)
	push a new element to sketch

void	Finalize (unsigned max_size)
	push final unfinished value to the sketch

Data Fields
double	sum_total {0.0}
	total sum of amount to be met

double	rmin
	statistics used in the sketch

double	wmin

bst_float	last_fvalue
	last seen feature value

double	next_goal
	current size of sketch

common::WXQuantileSketch< bst_float, bst_float > *	sketch

Detailed Description

Quantile structure accepts sorted data, extracted from histmaker.

Member Function Documentation

void xgboost::common::SortedQuantile::Push	(	bst_float	fvalue,
		bst_float	w,
		unsigned	max_size
	)

inline

push a new element to sketch

Parameters

fvalue	feature value, comes in sorted ascending order
w	weight
max_size

The documentation for this struct was generated from the following file: