Question

我正在尝试使用包MTurkR（使用OS MAC 10.9）通过R发布资格考试到亚马逊的mTurk。

当我尝试复制发布here的资格示例的示例时，收到以下错误消息：

Error in CreateQualificationType(name = "A new coding test 2", description = "Test of coding ability",  : No Namespace specified in 'test'

从示例开始，我的代码和输出如下：

# load QuestionForm and AnswerKey
QuestionForm <- paste0(scan(file="/Users/Desktop/QualExam.xml", what="character", sep="\n"), collapse="")
   >Read 3 items
AnswerKey <- paste0(scan(file="/Users/Desktop/QualExamAnswers.xml", what="character", sep="\n"), collapse="")
   >Read 3 items

# create new QualificationType
newqual <- CreateQualificationType(name="A new coding test 2",
    description="Test of coding ability",
    status="Active",
    test.duration=seconds(hours=1),
    test=QuestionForm,
    answerkey=AnswerKey,
    validate.test=TRUE,
    validate.answerkey=TRUE,
    sandbox=TRUE)
   >Error in CreateQualificationType(name = "A new coding test 2", description = "Test of coding ability",  : No Namespace specified in 'test'

我完全粘贴了示例中的文字，以创建QualExam.xml和QualExamAnswers.xml文件。

当我运行修改后的代码时，我收到以下错误：

> QuestionForm <- paste0(readLines("/Users/Desktop/QuestionForm_Example.xml"), collapse = "")
Warning message:
In readLines("/Users/Desktop/QuestionForm_Example.xml") :
  incomplete final line found on '/Users/Desktop/QuestionForm_Example.xml'

>AnswerKey <- paste0(readLines("/User/Desktop/AnswerKey_Example.xml"), collapse = "")
Warning message:
In readLines("/Users/Desktop/AnswerKey_Example.xml") :
  incomplete final line found on '/Users/Desktop/AnswerKey_Example.xml'
>newqual <- CreateQualificationType(name="Classifier: Basic",
     description="This qualification exam tests basic understanding of speech",
     status="Active",
     test.duration=seconds(hours=1),
     test=QuestionForm,
     answerkey=AnswerKey,
     validate.test=TRUE,
     validate.answerkey=TRUE,
     sandbox=sandbox.v)
Error in CreateQualificationType(name = "Classifier: Basic", description = "This qualification exam tests basic understanding of speech",  : 
  No Namespace specified in 'test'

我的会话信息如下所示：

sessionInfo()
R version 2.15.1 (2012-06-22)
Platform: i386-apple-darwin9.8.0/i386 (32-bit)

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] MTurkR_0.4

loaded via a namespace (and not attached):
[1] digest_0.6.4   RCurl_1.95-4.1 XML_3.98-1.1

请帮忙。

Answer 1

这不起作用，因为R未更新（您可以更新R here）。您还必须安装XQuartz 2.7.7。

验证了.xml个文件，并且示例正确地为我运行。我的sessionInfo()信息如下：

> sessionInfo()
R version 3.1.2 (2014-10-31)
Platform: x86_64-apple-darwin13.4.0 (64-bit)

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] MTurkR_0.6

loaded via a namespace (and not attached):
[1] bitops_1.0-6   digest_0.6.8   RCurl_1.95-4.5 tcltk_3.1.2    tools_3.1.2    XML_3.98-1.1

复制资格示例MTurkR

1 个答案: