在 R 中导入 Infopath .XML 表单并转换为数据框的最佳方法是什么？如果我在 Excel 中打开 Infopath .XML 文件，数据框的行和列会正确显示。
这是我在 R 中使用 XML 包尝试的内容:
- 我使用 xmlParse() 来解析 XML 文件
- 我使用 xmlToDataFrame() 尝试将已解析的 XML 文件转换为数据框
但是，在第 2 步中，我收到以下错误:
Error in `[<-.data.frame`(`*tmp*`, i, names(nodes[[i]]), value = c("touch your head13011000", :
duplicate subscripts for columns
不过，当我在 Excel 中打开 XML 文件时，似乎没有重复的列。如何将此 XML 文件从 Infopath 转换为 R 中的数据框？预期的列应该是(因为它们出现在 Excel 中):
TCID, DateCoded, tcAge, T1_B3, T1_B2, T1_B1, T1_B0, T1_A3, T1_A2, T1_A1, T1_A0, T1_DelayTotal, T2_A3, T2_A2, T2_A1, T2_A, T2_B3, T2_B2, T2_B1, T2_B0, T2_DelayTotal, Coder, notes_t1, note_t2, bachildpres30, baparpres30, bapassptgo, bapassptnogo, bamissgame, P1_B3, P1_B2, P1_B1, P1_B0, P1_A3, P1_A2, P1_A1, P1_A0, P1_DelayTotal, P1_action, P1_go-nogo, P1_score, P1_delay, P1_trial, P1_Ecommand, P1_imitation, P1_restraint, P1_ruleswitch, P1_trials, P1_gotrials, P1_nogotrials, T1_gotrials, T1_nogotrials, T1_trials, T2_gotrials, T2_nogotrials, T2_trials, P1_notplay, T1_trial, T1_go-nogo, T1_score, T1_delay, T1_action, T2_trial, T2_go-nogo, T2_score, T2_delay, T2_action
对于在 XML 文件中多次出现的变量，我希望它们以长格式出现在数据框中(即，同一变量的多行)。我对 XML 文件没有太多经验，因此非常感谢您的帮助。
下面是我使用 xmlParse 时在 R 中解析的 XML 文件的样子:
<my:myFields lang="en-us" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:w="http://schemas.microsoft.com/office/word/2003/wordml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:wx="http://schemas.microsoft.com/office/word/2003/auxHint" xmlns:aml="http://schemas.microsoft.com/aml/2001/core" xmlns:w10="urn:schemas-microsoft-com:office:word" xmlns:st="urn:schemas-microsoft-com:office:smarttags" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:my="http://schemas.microsoft.com/office/infopath/2003/myXSD/2009-07-01T18:12:59" xmlns:xd="http://schemas.microsoft.com/office/infopath/2003">
<my:SPSS>
<my:TCID>10</my:TCID>
<my:DateCoded>2013-04-01</my:DateCoded>
<my:tcAge>30</my:tcAge>
<my:T1_B3>6</my:T1_B3>
<my:T1_B2>0</my:T1_B2>
<my:T1_B1>0</my:T1_B1>
<my:T1_B0>0</my:T1_B0>
<my:T1_A3>0</my:T1_A3>
<my:T1_A2>0</my:T1_A2>
<my:T1_A1>1</my:T1_A1>
<my:T1_A0>5</my:T1_A0>
<my:T1_DelayTotal>1</my:T1_DelayTotal>
<my:T2_A3 nil="true"/>
<my:T2_A2 nil="true"/>
<my:T2_A1 nil="true"/>
<my:T2_A0 nil="true"/>
<my:T2_B3 nil="true"/>
<my:T2_B2 nil="true"/>
<my:T2_B1 nil="true"/>
<my:T2_B0 nil="true"/>
<my:T2_DelayTotal nil="true"/>
<my:Coder>Name</my:Coder>
</my:SPSS>
<my:notes_t1/>
<my:note_t2/>
<my:bachildpres30>0</my:bachildpres30>
<my:baparpres30>0</my:baparpres30>
<my:bapassptgo>1</my:bapassptgo>
<my:bapassptnogo>0</my:bapassptnogo>
<my:bamissgame>0</my:bamissgame>
<my:P1_B3>4</my:P1_B3>
<my:P1_B2>0</my:P1_B2>
<my:P1_B1>0</my:P1_B1>
<my:P1_B0>1</my:P1_B0>
<my:P1_A3>0</my:P1_A3>
<my:P1_A2>0</my:P1_A2>
<my:P1_A1>1</my:P1_A1>
<my:P1_A0>3</my:P1_A0>
<my:P1_DelayTotal>0</my:P1_DelayTotal>
<my:group2>
<my:group3>
<my:P1_action>touch your head</my:P1_action>
<my:P1_go-nogo>1</my:P1_go-nogo>
<my:P1_score>3</my:P1_score>
<my:P1_delay>0</my:P1_delay>
<my:P1_trial>1</my:P1_trial>
<my:P1_Ecommand>1</my:P1_Ecommand>
<my:P1_imitation>0</my:P1_imitation>
<my:P1_restraint>0</my:P1_restraint>
<my:P1_ruleswitch>0</my:P1_ruleswitch>
</my:group3>
<my:group3>
<my:P1_action>touch your nose</my:P1_action>
<my:P1_go-nogo>1</my:P1_go-nogo>
<my:P1_score>3</my:P1_score>
<my:P1_delay>0</my:P1_delay>
<my:P1_trial>2</my:P1_trial>
<my:P1_Ecommand>1</my:P1_Ecommand>
<my:P1_imitation>0</my:P1_imitation>
<my:P1_restraint>0</my:P1_restraint>
<my:P1_ruleswitch>0</my:P1_ruleswitch>
</my:group3>
<my:group3>
<my:P1_action>touch your tummy</my:P1_action>
<my:P1_go-nogo>1</my:P1_go-nogo>
<my:P1_score>3</my:P1_score>
<my:P1_delay>0</my:P1_delay>
<my:P1_trial>3</my:P1_trial>
<my:P1_Ecommand>1</my:P1_Ecommand>
<my:P1_imitation>0</my:P1_imitation>
<my:P1_restraint>0</my:P1_restraint>
<my:P1_ruleswitch>0</my:P1_ruleswitch>
</my:group3>
<my:group3>
<my:P1_action>touch your head</my:P1_action>
<my:P1_go-nogo>1</my:P1_go-nogo>
<my:P1_score>0</my:P1_score>
<my:P1_delay>0</my:P1_delay>
<my:P1_trial>4</my:P1_trial>
<my:P1_Ecommand>0</my:P1_Ecommand>
<my:P1_imitation>0</my:P1_imitation>
<my:P1_restraint>0</my:P1_restraint>
<my:P1_ruleswitch>0</my:P1_ruleswitch>
</my:group3>
<my:group3>
<my:P1_action>touch your head</my:P1_action>
<my:P1_go-nogo>1</my:P1_go-nogo>
<my:P1_score>3</my:P1_score>
<my:P1_delay>0</my:P1_delay>
<my:P1_trial>5</my:P1_trial>
<my:P1_Ecommand>0</my:P1_Ecommand>
<my:P1_imitation>0</my:P1_imitation>
<my:P1_restraint>0</my:P1_restraint>
<my:P1_ruleswitch>0</my:P1_ruleswitch>
</my:group3>
<my:group3>
<my:P1_action>touch your nose</my:P1_action>
<my:P1_go-nogo>1</my:P1_go-nogo>
<my:P1_score>3</my:P1_score>
<my:P1_delay>0</my:P1_delay>
<my:P1_trial>6</my:P1_trial>
<my:P1_Ecommand>0</my:P1_Ecommand>
<my:P1_imitation>0</my:P1_imitation>
<my:P1_restraint>0</my:P1_restraint>
<my:P1_ruleswitch>0</my:P1_ruleswitch>
</my:group3>
<my:group3>
<my:P1_action>clap your hands</my:P1_action>
<my:P1_go-nogo>1</my:P1_go-nogo>
<my:P1_score>3</my:P1_score>
<my:P1_delay>0</my:P1_delay>
<my:P1_trial>7</my:P1_trial>
<my:P1_Ecommand>0</my:P1_Ecommand>
<my:P1_imitation>0</my:P1_imitation>
<my:P1_restraint>0</my:P1_restraint>
<my:P1_ruleswitch>0</my:P1_ruleswitch>
</my:group3>
<my:group3>
<my:P1_action>touch your nose</my:P1_action>
<my:P1_go-nogo>0</my:P1_go-nogo>
<my:P1_score>0</my:P1_score>
<my:P1_delay>0</my:P1_delay>
<my:P1_trial>8</my:P1_trial>
<my:P1_Ecommand>0</my:P1_Ecommand>
<my:P1_imitation>0</my:P1_imitation>
<my:P1_restraint>0</my:P1_restraint>
<my:P1_ruleswitch>0</my:P1_ruleswitch>
</my:group3>
<my:group3>
<my:P1_action>touch your ears</my:P1_action>
<my:P1_go-nogo>0</my:P1_go-nogo>
<my:P1_score>0</my:P1_score>
<my:P1_delay>0</my:P1_delay>
<my:P1_trial>9</my:P1_trial>
<my:P1_Ecommand>0</my:P1_Ecommand>
<my:P1_imitation>0</my:P1_imitation>
<my:P1_restraint>0</my:P1_restraint>
<my:P1_ruleswitch>0</my:P1_ruleswitch>
</my:group3>
<my:group3>
<my:P1_action>touch your tummy</my:P1_action>
<my:P1_go-nogo>0</my:P1_go-nogo>
<my:P1_score>0</my:P1_score>
<my:P1_delay>0</my:P1_delay>
<my:P1_trial>10</my:P1_trial>
<my:P1_Ecommand>0</my:P1_Ecommand>
<my:P1_imitation>0</my:P1_imitation>
<my:P1_restraint>0</my:P1_restraint>
<my:P1_ruleswitch>0</my:P1_ruleswitch>
</my:group3>
<my:group3>
<my:P1_action>touch your eyes</my:P1_action>
<my:P1_go-nogo>0</my:P1_go-nogo>
<my:P1_score>1</my:P1_score>
<my:P1_delay>0</my:P1_delay>
<my:P1_trial>11</my:P1_trial>
<my:P1_Ecommand>0</my:P1_Ecommand>
<my:P1_imitation>0</my:P1_imitation>
<my:P1_restraint>1</my:P1_restraint>
<my:P1_ruleswitch>0</my:P1_ruleswitch>
</my:group3>
<my:group3>
<my:P1_action>touch your eyes</my:P1_action>
<my:P1_go-nogo>1</my:P1_go-nogo>
<my:P1_score>3</my:P1_score>
<my:P1_delay>0</my:P1_delay>
<my:P1_trial>12</my:P1_trial>
<my:P1_Ecommand>0</my:P1_Ecommand>
<my:P1_imitation>0</my:P1_imitation>
<my:P1_restraint>0</my:P1_restraint>
<my:P1_ruleswitch>0</my:P1_ruleswitch>
</my:group3>
</my:group2>
<my:P1_trials>9</my:P1_trials>
<my:P1_gotrials>5</my:P1_gotrials>
<my:P1_nogotrials>4</my:P1_nogotrials>
<my:T1_gotrials>6</my:T1_gotrials>
<my:T1_nogotrials>6</my:T1_nogotrials>
<my:T1_trials>12</my:T1_trials>
<my:T2_gotrials>0</my:T2_gotrials>
<my:T2_nogotrials>0</my:T2_nogotrials>
<my:T2_trials>0</my:T2_trials>
<my:P1_notplay/>
<my:group4>
<my:group5>
<my:T1_trial>1</my:T1_trial>
<my:T1_go-nogo>1</my:T1_go-nogo>
<my:T1_score>3</my:T1_score>
<my:T1_delay>1</my:T1_delay>
<my:T1_action>Touch your tongue</my:T1_action>
</my:group5>
<my:group5>
<my:T1_trial>2</my:T1_trial>
<my:T1_go-nogo>1</my:T1_go-nogo>
<my:T1_score>3</my:T1_score>
<my:T1_delay>0</my:T1_delay>
<my:T1_action>Touch your teeth</my:T1_action>
</my:group5>
<my:group5>
<my:T1_trial>3</my:T1_trial>
<my:T1_go-nogo>0</my:T1_go-nogo>
<my:T1_score>0</my:T1_score>
<my:T1_delay>0</my:T1_delay>
<my:T1_action>Touch your ear</my:T1_action>
</my:group5>
<my:group5>
<my:T1_trial>4</my:T1_trial>
<my:T1_go-nogo>1</my:T1_go-nogo>
<my:T1_score>3</my:T1_score>
<my:T1_delay>0</my:T1_delay>
<my:T1_action>Clap your hands</my:T1_action>
</my:group5>
<my:group5>
<my:T1_trial>5</my:T1_trial>
<my:T1_go-nogo>0</my:T1_go-nogo>
<my:T1_score>0</my:T1_score>
<my:T1_delay>0</my:T1_delay>
<my:T1_action>Clap your hands</my:T1_action>
</my:group5>
<my:group5>
<my:T1_trial>6</my:T1_trial>
<my:T1_go-nogo>0</my:T1_go-nogo>
<my:T1_score>0</my:T1_score>
<my:T1_delay>0</my:T1_delay>
<my:T1_action>Touch your eyes</my:T1_action>
</my:group5>
<my:group5>
<my:T1_trial>7</my:T1_trial>
<my:T1_go-nogo>0</my:T1_go-nogo>
<my:T1_score>0</my:T1_score>
<my:T1_delay>0</my:T1_delay>
<my:T1_action>Touch your feet</my:T1_action>
</my:group5>
<my:group5>
<my:T1_trial>8</my:T1_trial>
<my:T1_go-nogo>1</my:T1_go-nogo>
<my:T1_score>3</my:T1_score>
<my:T1_delay>0</my:T1_delay>
<my:T1_action>Touch your nose</my:T1_action>
</my:group5>
<my:group5>
<my:T1_trial>9</my:T1_trial>
<my:T1_go-nogo>0</my:T1_go-nogo>
<my:T1_score>1</my:T1_score>
<my:T1_delay>0</my:T1_delay>
<my:T1_action>Touch your nose</my:T1_action>
</my:group5>
<my:group5>
<my:T1_trial>10</my:T1_trial>
<my:T1_go-nogo>1</my:T1_go-nogo>
<my:T1_score>3</my:T1_score>
<my:T1_delay>0</my:T1_delay>
<my:T1_action>Touch your tummy</my:T1_action>
</my:group5>
<my:group5>
<my:T1_trial>11</my:T1_trial>
<my:T1_go-nogo>0</my:T1_go-nogo>
<my:T1_score>0</my:T1_score>
<my:T1_delay>0</my:T1_delay>
<my:T1_action>Wave your hand</my:T1_action>
</my:group5>
<my:group5>
<my:T1_trial>12</my:T1_trial>
<my:T1_go-nogo>1</my:T1_go-nogo>
<my:T1_score>3</my:T1_score>
<my:T1_delay>0</my:T1_delay>
<my:T1_action>Touch your head</my:T1_action>
</my:group5>
</my:group4>
<my:group6>
<my:group7>
<my:T2_trial>1</my:T2_trial>
<my:T2_go-nogo>0</my:T2_go-nogo>
<my:T2_score/>
<my:T2_delay>0</my:T2_delay>
<my:T2_action>Touch your tongue</my:T2_action>
</my:group7>
<my:group7>
<my:T2_trial>2</my:T2_trial>
<my:T2_go-nogo>0</my:T2_go-nogo>
<my:T2_score/>
<my:T2_delay>0</my:T2_delay>
<my:T2_action>Touch your teeth</my:T2_action>
</my:group7>
<my:group7>
<my:T2_trial>3</my:T2_trial>
<my:T2_go-nogo>1</my:T2_go-nogo>
<my:T2_score/>
<my:T2_delay>0</my:T2_delay>
<my:T2_action>Touch your ear</my:T2_action>
</my:group7>
<my:group7>
<my:T2_trial>4</my:T2_trial>
<my:T2_go-nogo>0</my:T2_go-nogo>
<my:T2_score/>
<my:T2_delay>0</my:T2_delay>
<my:T2_action>Clap your hands</my:T2_action>
</my:group7>
<my:group7>
<my:T2_trial>5</my:T2_trial>
<my:T2_go-nogo>1</my:T2_go-nogo>
<my:T2_score/>
<my:T2_delay>0</my:T2_delay>
<my:T2_action>Clap your hands</my:T2_action>
</my:group7>
<my:group7>
<my:T2_trial>6</my:T2_trial>
<my:T2_go-nogo>1</my:T2_go-nogo>
<my:T2_score/>
<my:T2_delay>0</my:T2_delay>
<my:T2_action>Touch your eyes</my:T2_action>
</my:group7>
<my:group7>
<my:T2_trial>7</my:T2_trial>
<my:T2_go-nogo>1</my:T2_go-nogo>
<my:T2_score/>
<my:T2_delay>0</my:T2_delay>
<my:T2_action>Touch your feet</my:T2_action>
</my:group7>
<my:group7>
<my:T2_trial>8</my:T2_trial>
<my:T2_go-nogo>0</my:T2_go-nogo>
<my:T2_score/>
<my:T2_delay>0</my:T2_delay>
<my:T2_action>Touch your nose</my:T2_action>
</my:group7>
<my:group7>
<my:T2_trial>9</my:T2_trial>
<my:T2_go-nogo>1</my:T2_go-nogo>
<my:T2_score/>
<my:T2_delay>0</my:T2_delay>
<my:T2_action>Touch your nose</my:T2_action>
</my:group7>
<my:group7>
<my:T2_trial>10</my:T2_trial>
<my:T2_go-nogo>0</my:T2_go-nogo>
<my:T2_score/>
<my:T2_delay>0</my:T2_delay>
<my:T2_action>Touch your tummy</my:T2_action>
</my:group7>
<my:group7>
<my:T2_trial>11</my:T2_trial>
<my:T2_go-nogo>1</my:T2_go-nogo>
<my:T2_score/>
<my:T2_delay>0</my:T2_delay>
<my:T2_action>Wave your hand</my:T2_action>
</my:group7>
<my:group7>
<my:T2_trial>12</my:T2_trial>
<my:T2_go-nogo>0</my:T2_go-nogo>
<my:T2_score/>
<my:T2_delay>0</my:T2_delay>
<my:T2_action>Touch your head</my:T2_action>
</my:group7>
</my:group6>
</my:myFields>
最佳答案
根据我的经验，xmlToDataFrame 仅在 XML 已经以非常一致的方式构建时才有效。您正在使用的数据以多种不同的方式构建:
# Assuming you've already read your data into a character vector called `xml_file
xml_file <- xmlParse(xml_file)
xml_file <- xmlToList(xml_file)
stack(sapply(xml_file, length))
values ind
1 22 SPSS
2 0 notes_t1
3 0 note_t2
4 1 bachildpres30
5 1 baparpres30
6 1 bapassptgo
7 1 bapassptnogo
8 1 bamissgame
9 1 P1_B3
10 1 P1_B2
11 1 P1_B1
12 1 P1_B0
13 1 P1_A3
14 1 P1_A2
15 1 P1_A1
16 1 P1_A0
17 1 P1_DelayTotal
18 12 group2
19 1 P1_trials
20 1 P1_gotrials
21 1 P1_nogotrials
22 1 T1_gotrials
23 1 T1_nogotrials
24 1 T1_trials
25 1 T2_gotrials
26 1 T2_nogotrials
27 1 T2_trials
28 0 P1_notplay
29 12 group4
30 12 group6
31 1 .attrs
所以你的大部分节点都包含一个值。有几个是空的。 “SPSS”节点包含22个值，名称各不相同，“group2”、“group4”、“group6”均包含12个节点，每个节点包含多个值，但各节点的值相似。当我查看 Excel 在导入文件时做了什么时，它将 12 个节点的组件堆叠在一起，然后将所有 22 个“SPSS”组件与所有单值节点串在一起并重复该字符串与通过堆叠 12 节点组件创建的行一样多，然后将这两个部分按列绑定(bind)在一起。
为此，从 12 节点 block 中分离出长字符串:
xml_file_singles <- xml_file[sapply(xml_file, length) != 12]
xml_file_singles[sapply(xml_file_singles, length) == 0] <- NA
xml_file_singles <- unlist(xml_file_singles)
xml_file_multiples <- xml_file[sapply(xml_file, length) == 12]
现在获取 12 节点 block 并将每个 block 转换为数据框:
xml_file_multiples <- lapply(1:length(xml_file_multiples), function(i) {
x <- lapply(xml_file_multiples[[i]], function(y) {
data.frame(as.list(unlist(y)), stringsAsFactors = FALSE)})
x <- do.call("rbind", x)
cbind("group" = names(xml_file_multiples)[i], x)
})
现在使用 plyr 包的 rbind.fill 函数将所有新数据框放在一起:
require(plyr)
xml_file_multiples <- do.call("rbind.fill", xml_file_multiples)
现在 cbind 你的一长串值到你绑定(bind)的数据帧:
xml_final <- cbind(as.list(xml_file_singles), xml_file_multiples,
stringsAsFactors = FALSE)
这种方法与 Excel 的方法一样，引入了大量的 NA，因为不同的 12 节点 block 的列名都略有不同。如果您在调用 rbind.fill 之前执行此操作:
xml_file_multiples <- lapply(1:length(xml_file_multiples), function(i) {
x <- lapply(xml_file_multiples[[i]], function(y) {
data.frame(as.list(unlist(y)), stringsAsFactors = FALSE)})
x <- do.call("rbind", x)
x <- cbind("group" = names(xml_file_multiples)[i], x)
colnames(x) <- gsub("^\\w\\d_", "", colnames(x))
x
})
您会生成较少的 NA，因为您会生成较少的冗余列，但随后您将不得不依赖“组”列中的值来跟踪哪些行最初出现在哪个节点中。
关于xml - 将 Infopath .XML 表单导入 R 中的数据框，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/16593301/