r - 保持恒定列 h2o

Question

我正在尝试使用 R 的 h2o 包实现梯度提升机器模型。但是，该模型不断删除我从其他模型构建中知道的某个列，该列很重要。

 Warning message:
    In .h2o.startModelJob(algo, params, h2oRestApiVersion) :
      Dropping bad and constant columns:['mycolumn']

如何阻止 h2o 删除此列？这是我尝试过的：

gbm_fit<-h2o.gbm(x,y,train_set,nfolds = 10,
                 ntrees = 250,
                 learn_rate = 0.15,
                 max_depth = 7,
                             validation_frame = validate_set,seed = 233,
                ignore_const_cols = F
                )

标签： rmachine-learningh2ogbm

Answer 1

Make sure the column class is correct and accepted by the function.