为什么会产生错误，问题出在哪里？

Question

Rfmodel<-h2o.grid("randomForest",
              search_criteria = list(
                strategy="RamdomDiscrete",
                stopping_metric ="mse",
                stopping_tolerance= 0.001,
                stopping_rounds=5,
                max_runtime_secs=240
              ),
              hyper_params = list(
                ntrees=c(50,100,200,250),
                mtries=c(1,2,4,6),
                sample_rate=c(0.3,0.5,0.75,0.90),
                col_sample_rate_per_tree=c(0.25,0.50,0.75,0.1)
              ),
              x=8,y=1:7,training_frame = data.train,nfolds=4,max_depth=50,
              stopping_metric="misclassification",
              stopping_tolerance=0,
              stopping_rounds=5,
              seed=2
              )

。h2o.doSafeREST（h2oRestApiVersion = h2oRestApiVersion，urlSuffix = page，：]中的错误>]

错误消息：

无法解析search_criteria字典；错误：原始值的search_criteria.strategy：{“ strategy” =“ RamdomDiscrete”，“ stopping_metric” =“错误分类”，“ stopping_tolerance” = 0.001，“ stopping_rounds” = 5，“ max_runtime_secs” = 240}

请帮助我解决这个问题。

Rfmodel

Answer 1

谢谢您，它现在正在运行，我不知道如何运行，但是在重新启动计算机后才运行。