Question

我不熟悉将XML文件导入R. 我已经查看了有关此主题的现有问题，但找不到一个似乎合适的问题。我很感谢你的评论！

我的问题如下：我有一个具有以下结构的XML文件

<?xml version="1.0" encoding="ISO-8859-1" standalone="yes"?>
<PublicationData>
    <Products numberOfProducts="2094">
        <Product terminationReason="" isSalePermission="false" soldoutDeadline="" exhaustionDeadline="" name="Résanol Trio " wNbr="6016" id="7034">
            <ProductInformation>
                <ProductCategory primaryKey="7282"/>
                <ProductCategory primaryKey="7282"/>
                <FormulationCode primaryKey="6486"/>
                <DangerSymbol primaryKey="6513"/>
                <DangerSymbol primaryKey="6509"/>
                <CodeS primaryKey="6145"/>
                <CodeS primaryKey="6117"/>
                <CodeS primaryKey="6039"/>
                <CodeS primaryKey="6057"/>
                <CodeS primaryKey="6066"/>
                <CodeS primaryKey="6106"/>
                <CodeS primaryKey="6076"/>
                <CodeS primaryKey="6088"/>
                <CodeR primaryKey="5977"/>
                <CodeR primaryKey="5943"/>
                <CodeR primaryKey="5945"/>
                <CodeR primaryKey="5948"/>
                <CodeR primaryKey="6020"/>
                <PermissionHolderKey primaryKey="10115"/>
                <Ingredient additionalTextPrimaryKey="" inGrammPerLitre="" inPercent="7.5">
                    <SubstanceType xsi:type="xs:string" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">ACTIVE_INGREDIENT</SubstanceType>
                    <Substance primaryKey="898"/>
                </Ingredient>
                <Ingredient additionalTextPrimaryKey="" inGrammPerLitre="" inPercent="40.0">
                    <SubstanceType xsi:type="xs:string" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">ACTIVE_INGREDIENT</SubstanceType>
                    <Substance primaryKey="338"/>
                </Ingredient>
                <Ingredient additionalTextPrimaryKey="" inGrammPerLitre="" inPercent="15.0">
                    <SubstanceType xsi:type="xs:string" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">ACTIVE_INGREDIENT</SubstanceType>
                    <Substance primaryKey="190"/>
                </Ingredient>
                <Indication expenditureTo="" expenditureForm="8.0" waitingPeriod="" dosageTo="" dosageFrom="0.5">
                    <Measure primaryKey="6518"/>
                    <ApplicationArea primaryKey="3"/>
                    <ApplicationComment primaryKey="868"/>
                    <Culture additionalTextPrimaryKey="" primaryKey="9953"/>
                    <Pest type="PEST_FULL_EFFECT" additionalTextPrimaryKey="" primaryKey="10506"/>
                    <Pest type="PEST_FULL_EFFECT" additionalTextPrimaryKey="6964" primaryKey="10508"/>
                    <Pest type="PEST_FULL_EFFECT" additionalTextPrimaryKey="" primaryKey="10507"/>
                    <Pest type="PEST_PARTIAL_EFFECT" additionalTextPrimaryKey="" primaryKey="10533"/>
                    <Obligation primaryKey="12317"/>
                    <Obligation primaryKey="11380"/>
                    <Obligation primaryKey="9156"/>
                    <Obligation primaryKey="9735"/>
                    <Obligation primaryKey="9906"/>
                </Indication>
            </ProductInformation>
        </Product>

我正在尝试提取＆＃34; ProductInformation＆＃34;节点并尝试

xmlfile<-xmlParse("filepath")
relevant<-xpathApply(xmlfile,"//*/Products/Product")
relevant2<-sapply(relevant,xmlValue)

这给了我类似的东西

[1] "ACTIVE_INGREDIENTACTIVE_INGREDIENT"                                                                                                      
[...] "ACTIVE_INGREDIENT"                                                                                                                       
[2094] "ACTIVE_INGREDIENT"

改为使用

relevant2<-sapply(relevant,xmlAttrs)

如果也无法提取信息。

我的问题的答案可能很明显，但我无法找到答案。谢谢你的帮助！

R：XML格式为

0 个答案: