Adaboost提升方法:GBDT实现

import numpy as np

class myAdaboost():
def __init__(self,train_X,train_y,numIter):

self.train_X=np.asarray(train_X)
self.train_y=np.asarray(train_y).reshape(-1,1)
self.numIter=numIter
self.weakClassArr = []

def stumpClassify(self, dataMatrix, dimen, threshVal, threshIneq):

dataMatrix = np.asarray(dataMatrix)
retArray = np.ones((dataMatrix.shape[0], 1))
if threshIneq == 'lt':
retArray[

Adaboost提升方法:GBDT实现最先出现在Python成神之路。