Question

我正在尝试解析从ZillowR API返回的列表。它确实看起来像XML，但我只得到试图解析它的错误。我想把它放在单行数据框中，某些节点是列名，它们的值是值。数据框将包含zipId，地址，邮政编码，最后售价等列...

> class(listings)
[1] "list"
> class(listings$response)
[1] "XMLNode"          "RXMLAbstractNode" "XMLAbstractNode"  "oldClass"        
> listings$response
<response>
 <results>
  <result>
   <zpid>106502569</zpid>
   <address>
    <street>2914 N Lincoln Rd</street>
    <zipcode>49431</zipcode>
    <city>Ludington</city>
    <state>MI</state>
    <latitude>44.009122</latitude>
    <longitude>-86.439803</longitude>
   </address>
   <FIPScounty>26105</FIPScounty>
   <useCode>SingleFamily</useCode>
   <taxAssessmentYear>2015</taxAssessmentYear>
   <taxAssessment>64400.0</taxAssessment>
   <yearBuilt>1992</yearBuilt>
   <lotSizeSqFt>217800</lotSizeSqFt>
   <finishedSqFt>1500</finishedSqFt>
   <bathrooms>2.0</bathrooms>
   <bedrooms>2</bedrooms>
   <lastSoldDate>12/05/2016</lastSoldDate>
   <lastSoldPrice currency="USD">1</lastSoldPrice>
   <zestimate>
    <amount currency="USD">153718</amount>
    <last-updated>12/05/2016</last-updated>
    <oneWeekChange deprecated="true"/>
    <valueChange duration="30" currency="USD">-1443</valueChange>
    <valuationRange>
     <low currency="USD">141421</low>
     <high currency="USD">170627</high>
    </valuationRange>
    <percentile>0</percentile>
   </zestimate>
   <localRealEstate/>
  </result>
 </results>
</response>

当我试图解析它时......

> library(xml2)
> xml_find_all(listings$response, "zpid")
Error in UseMethod("xml_find_all") : 
  no applicable method for 'xml_find_all' applied to an object of class "XMLNode"
> xml_name(listings$response)
Error in UseMethod("xml_name") : 
  no applicable method for 'xml_name' applied to an object of class "XMLNode"
> xmlParse(listings$response)
Error in file.exists(file) : invalid 'file' argument

listings variable structure

提前致谢，史蒂夫

解析包含r到数据帧中的xml的列表

0 个答案: