Hi R,
      I am a new Chinese user of R, I like this language very much.In the recent months,I spend over 4 hours every day leanring R,but during the learning I come across some problems I can not understand.For R is still not very popular in China,I ask  some  net friends but nobody can give me a satisfactory answer,so I have to ask for your help. In the package quatmod, getSymbols is a useful tools to fetch datas form the Internet but it often can not work when I use it,such as
 getSymbols("APPL",src="yahoo")  or getSymbols("APPL",from="2007-01-03",to=Sys.Date()) .It should be useful because many books have already shown it ,but   As of 0.4-0, ‘getSymbols’ uses env=parent.frame() and
 auto.assign=TRUE by default.
  This  behavior  will be  phased out in 0.5-0  when the call  will
 default to use auto.assign=FALSE. getOption("getSymbols.env") and 
 getOptions("getSymbols.auto.assign") are now checked for alternate defaults
  This message is shown once per session and may be disabled by setting 
 options("getSymbols.warning4.0"=FALSE). See ?getSymbol for more details
错误于download.file(paste(yahoo.URL, "s=", Symbols.name, "&a=", from.m,  : 
  无法打开URL'http://chart.yahoo.com/table.csv?s=APPL&a=0&b=03&c=2007&d=2&e=29&f=2014&g=d&q=q&y=0&z=APPL&x=.csv'
此外: 警告信息：
In download.file(paste(yahoo.URL, "s=", Symbols.name, "&a=", from.m,  :
  无法打开: HTTP状态是'404Not Found'
 I want to know why.Maybe it due to the damn Great Firewall. I hope you can reply to me when convenience. Best ragards.(My English is not fluent, please do not mind)
                                                                                                             A Chinese R  user & lover.
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