我迫切需要一个解决方案来从R中的集体推文中提取主题标签.例如:
[[1]]
[1] "RddzAlejandra: RT @NiallOfficial: What a day for @johnJoeNevin ! Sooo proud t have been there to see him at #London2012 and here in mgar #MullingarShuffle"
[[2]]
[1] "BPOInsight: RT @atos: Atos completes delivery of key IT systems for London 2012 Olympic Games http://t.co/Modkyo2R #london2012"
[[3]]
[1] "BloombergWest: The #Olympics sets a ratings record for #NBC, with 219M viewers tuning in. http://t.co/scGzIXBp #london2012 #tech"
如何解析它以提取所有推文中的#标签词列表.以前的解决方案在第一条推文中仅显示主题标签,并在代码中显示以下错误消息:
> string <-"MonicaSarkar: RT @saultracey: Sun kissed #olmpicrings at #towerbridge #london2012 @ Tower …r ×1