首页 > 解决方案 > 将 Tibble 转换为 h2o hex 文件时出错

问题描述

我在 Rstudio 中运行 h2o 包,将 Tibble 转换为 h2o 时出现错误。

下面是我的代码

#Augment Time Series Signature
PO_Data_aug = PO_Data %>%
  tk_augment_timeseries_signature()

PO_Data_aug


# Split into training, validation and test sets
train_tbl = PO_Data_aug %>% filter(Date <= '2017-12-29')
valid_tbl = PO_Data_aug %>% filter(Date>'2017-12-29'& Date <='2018-03-31')
test_tbl  = PO_Data_aug %>% filter(Date > '2018-03-31')
str(train_tbl)
train_tbl$month.lbl<-as.character(train_tbl$month.lbl)

h2o.init()        # Fire up h2o

##hex
train_h2o = as.h2o(train_tbl)
valid_h2o = as.h2o(valid_tbl)
test_h2o  = as.h2o(test_tbl)



ERROR: Unexpected HTTP Status code: 412 Precondition Failed (url = http://localhost:54321/3/Parse)



ERROR MESSAGE:

Provided column type ordered is unknown.  Cannot proceed with parse due to invalid argument.

请建议

标签: machine-learningrstudioh2oh2o4gpu

解决方案


这实际上是 H2O 中的一个错误——它与 tibbles 无关。data.frames 或 tibbles 中不支持“有序”列类型。我们会解决这个问题(票在这里)

现在的解决方法是将“有序”列手动转换为无序“因子”列。

tb <- tibble(x = ordered(c(1,2,3)), y = 1:3)
tb$x <- factor(tb$x, ordered = FALSE)
hf <- as.h2o(tb)

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