xpath - R: Getting the value of an attribute -


i retrieve value of "position" attribute html.

here sample:

<message>  <meta date="20150707" expired="false" lastmod="jul 08, 2015 08:00:03" matched="11" position="jul 07, 2015 19:25:05" sentdate="jul 07, 2015 19:25:05">      <pubdate>tue, 07 jul 2015 23:25:05 +0000</pubdate>     <summary>summaryhere</summary>     <title>titlehere</title>  </meta> <keywords>keywordshere</keywords> <category>news</category> </message>

i tried use code

date <- xpathsapply(data3,"//meta[@position]",xmlvalue)

where data3 whole html source.

however, returns following

date  [1] "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" ""     "" "" "" "" "" "" [30] "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" ""

any idea?

thanks!

you can use:

date <- xpathsapply(data3,"//meta[@position]", xmlgetattr, 'position')

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