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陈强教授《机器学习及R应用》课程 第十三章作业
2022-08-09 12:42:00 【Mrrunsen】
#第十三章的作业
#13.1 使用concrete回归混凝土抗压强度
#(1)选取训练集,估计提升法模型
rm(list=ls())
library(AppliedPredictiveModeling)
library(gbm)
data(concrete)
set.seed(1)
train_index <- sample(1030, 730边栏推荐
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