Convert R dataframe into h2o object - error: Provided column type ordered is unknown
Convert R dataframe into h2o object - error: Provided column type ordered is unknown
我是运行R中的以下代码
library(h2o)
h2o.init()
df <- as.h2o(diamonds)
并返回以下错误：
ERROR: Unexpected HTTP Status code: 412 Precondition Failed (url = http://localhost:54321/3/Parse)
water.exceptions.H2OIllegalArgumentException
[1] "water.exceptions.H2OIllegalArgumentException: Provided column type ordered is unknown. Cannot proceed with parse due to invalid argument."
[2] " water.parser.ParseSetup.strToColumnTypes(ParseSetup.java:240)"
[3] " water.api.ParseHandler.parse(ParseHandler.java:21)"
[4] " sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)"
[5] " sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)"
[6] " sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)"
[7] " java.lang.reflect.Method.invoke(Method.java:498)"
[8] " water.api.Handler.handle(Handler.java:60)"
[9] " water.api.RequestServer.serve(RequestServer.java:462)"
[10] " water.api.RequestServer.doGeneric(RequestServer.java:295)"
[11] " water.api.RequestServer.doPost(RequestServer.java:221)"
[12] " javax.servlet.http.HttpServlet.service(HttpServlet.java:755)"
[13] " javax.servlet.http.HttpServlet.service(HttpServlet.java:848)"
[14] " org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684)"
[15] " org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:501)"
[16] " org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)"
[17] " org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:427)"
[18] " org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)"
[19] " org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)"
[20] " org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)"
[21] " org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)"
[22] " water.webserver.jetty8.Jetty8ServerAdapter$LoginHandler.handle(Jetty8ServerAdapter.java:119)"
[23] " org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)"
[24] " org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)"
[25] " org.eclipse.jetty.server.Server.handle(Server.java:370)"
[26] " org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494)"
[27] " org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)"
[28] " org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:984)"
[29] " org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1045)"
[30] " org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:861)"
[31] " org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:236)"
[32] " org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)"
[33] " org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)"
[34] " org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)"
[35] " org.eclipse.jetty.util.thread.QueuedThreadPool.run(QueuedThreadPool.java:543)"
[36] " java.lang.Thread.run(Thread.java:748)"
Error in .h2o.doSafeREST(h2oRestApiVersion = h2oRestApiVersion, urlSuffix = page, :
ERROR MESSAGE:
Provided column type ordered is unknown. Cannot proceed with parse due to invalid argument.
不是很清楚哪里出了问题。
diamonds 数据集（至少来自 ggplot2 的数据集）包括 ordered class:
的变量
> str(diamonds)
Classes ‘tbl_df’, ‘tbl’ and 'data.frame': 53940 obs. of 10 variables:
$ carat : num 0.23 0.21 0.23 0.29 0.31 0.24 0.24 0.26 0.22 0.23 ...
$ cut : Ord.factor w/ 5 levels "Fair"<"Good"<..: 5 4 2 4 2 3 3 3 1 3 ...
$ color : Ord.factor w/ 7 levels "D"<"E"<"F"<"G"<..: 2 2 2 6 7 7 6 5 2 5 ...
$ clarity: Ord.factor w/ 8 levels "I1"<"SI2"<"SI1"<..: 2 3 5 4 2 6 7 3 4 5 ...
$ depth : num 61.5 59.8 56.9 62.4 63.3 62.8 62.3 61.9 65.1 59.4 ...
$ table : num 55 61 65 58 58 57 57 55 61 61 ...
$ price : int 326 326 327 334 335 336 336 337 337 338 ...
$ x : num 3.95 3.89 4.05 4.2 4.34 3.94 3.95 4.07 3.87 4 ...
$ y : num 3.98 3.84 4.07 4.23 4.35 3.96 3.98 4.11 3.78 4.05 ...
$ z : num 2.43 2.31 2.31 2.63 2.75 2.48 2.47 2.53 2.49 2.39 ...
> sapply(diamonds, class)
$carat
[1] "numeric"
$cut
[1] "ordered" "factor"
$color
[1] "ordered" "factor"
$clarity
[1] "ordered" "factor"
$depth
[1] "numeric"
$table
[1] "numeric"
$price
[1] "integer"
$x
[1] "numeric"
$y
[1] "numeric"
$z
[1] "numeric"
错误消息似乎表明 h2o 不支持 class。您应该首先将它们转换为不同的 class，例如factor 或 character.
我是运行R中的以下代码
library(h2o)
h2o.init()
df <- as.h2o(diamonds)
并返回以下错误：
ERROR: Unexpected HTTP Status code: 412 Precondition Failed (url = http://localhost:54321/3/Parse)
water.exceptions.H2OIllegalArgumentException
[1] "water.exceptions.H2OIllegalArgumentException: Provided column type ordered is unknown. Cannot proceed with parse due to invalid argument."
[2] " water.parser.ParseSetup.strToColumnTypes(ParseSetup.java:240)"
[3] " water.api.ParseHandler.parse(ParseHandler.java:21)"
[4] " sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)"
[5] " sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)"
[6] " sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)"
[7] " java.lang.reflect.Method.invoke(Method.java:498)"
[8] " water.api.Handler.handle(Handler.java:60)"
[9] " water.api.RequestServer.serve(RequestServer.java:462)"
[10] " water.api.RequestServer.doGeneric(RequestServer.java:295)"
[11] " water.api.RequestServer.doPost(RequestServer.java:221)"
[12] " javax.servlet.http.HttpServlet.service(HttpServlet.java:755)"
[13] " javax.servlet.http.HttpServlet.service(HttpServlet.java:848)"
[14] " org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684)"
[15] " org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:501)"
[16] " org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)"
[17] " org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:427)"
[18] " org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)"
[19] " org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)"
[20] " org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)"
[21] " org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)"
[22] " water.webserver.jetty8.Jetty8ServerAdapter$LoginHandler.handle(Jetty8ServerAdapter.java:119)"
[23] " org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)"
[24] " org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)"
[25] " org.eclipse.jetty.server.Server.handle(Server.java:370)"
[26] " org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494)"
[27] " org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)"
[28] " org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:984)"
[29] " org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1045)"
[30] " org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:861)"
[31] " org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:236)"
[32] " org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)"
[33] " org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)"
[34] " org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)"
[35] " org.eclipse.jetty.util.thread.QueuedThreadPool.run(QueuedThreadPool.java:543)"
[36] " java.lang.Thread.run(Thread.java:748)"
Error in .h2o.doSafeREST(h2oRestApiVersion = h2oRestApiVersion, urlSuffix = page, :
ERROR MESSAGE:
Provided column type ordered is unknown. Cannot proceed with parse due to invalid argument.
不是很清楚哪里出了问题。
diamonds 数据集（至少来自 ggplot2 的数据集）包括 ordered class:
> str(diamonds)
Classes ‘tbl_df’, ‘tbl’ and 'data.frame': 53940 obs. of 10 variables:
$ carat : num 0.23 0.21 0.23 0.29 0.31 0.24 0.24 0.26 0.22 0.23 ...
$ cut : Ord.factor w/ 5 levels "Fair"<"Good"<..: 5 4 2 4 2 3 3 3 1 3 ...
$ color : Ord.factor w/ 7 levels "D"<"E"<"F"<"G"<..: 2 2 2 6 7 7 6 5 2 5 ...
$ clarity: Ord.factor w/ 8 levels "I1"<"SI2"<"SI1"<..: 2 3 5 4 2 6 7 3 4 5 ...
$ depth : num 61.5 59.8 56.9 62.4 63.3 62.8 62.3 61.9 65.1 59.4 ...
$ table : num 55 61 65 58 58 57 57 55 61 61 ...
$ price : int 326 326 327 334 335 336 336 337 337 338 ...
$ x : num 3.95 3.89 4.05 4.2 4.34 3.94 3.95 4.07 3.87 4 ...
$ y : num 3.98 3.84 4.07 4.23 4.35 3.96 3.98 4.11 3.78 4.05 ...
$ z : num 2.43 2.31 2.31 2.63 2.75 2.48 2.47 2.53 2.49 2.39 ...
> sapply(diamonds, class)
$carat
[1] "numeric"
$cut
[1] "ordered" "factor"
$color
[1] "ordered" "factor"
$clarity
[1] "ordered" "factor"
$depth
[1] "numeric"
$table
[1] "numeric"
$price
[1] "integer"
$x
[1] "numeric"
$y
[1] "numeric"
$z
[1] "numeric"
错误消息似乎表明 h2o 不支持 class。您应该首先将它们转换为不同的 class，例如factor 或 character.