https://blog.youkuaiyun.com/ap0406708zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/ap0406708/article/details/55854477https://blog.youkuaiyun.com/ap0406708/article/details/55854477ap0406708Mon, 20 Feb 2017 00:12:15 +0800https://blog.youkuaiyun.com/ap0406708/article/details/43252335https://blog.youkuaiyun.com/ap0406708/article/details/43252335ap0406708Thu, 29 Jan 2015 00:32:25 +0800https://blog.youkuaiyun.com/ap0406708/article/details/41500835https://blog.youkuaiyun.com/ap0406708/article/details/41500835ap0406708Wed, 26 Nov 2014 01:11:10 +0800https://blog.youkuaiyun.com/ap0406708/article/details/41469439https://blog.youkuaiyun.com/ap0406708/article/details/41469439ap0406708Tue, 25 Nov 2014 02:29:45 +0800https://blog.youkuaiyun.com/ap0406708/article/details/41468343https://blog.youkuaiyun.com/ap0406708/article/details/41468343ap0406708Tue, 25 Nov 2014 02:13:23 +0800https://blog.youkuaiyun.com/ap0406708/article/details/40734529https://blog.youkuaiyun.com/ap0406708/article/details/40734529ap0406708Mon, 03 Nov 2014 07:03:04 +0800https://blog.youkuaiyun.com/ap0406708/article/details/40572885https://blog.youkuaiyun.com/ap0406708/article/details/40572885ap0406708Wed, 29 Oct 2014 02:20:29 +0800 lines(density(r),col="blue") 命令 得到下面这个错误 Error in plot.xy(xy.coords(x, y), type = type, ...) :    plot.new has not been called yet 请问怎么解决啊？]]>https://blog.youkuaiyun.com/ap0406708/article/details/39717267https://blog.youkuaiyun.com/ap0406708/article/details/39717267ap0406708Wed, 01 Oct 2014 11:11:41 +0800https://blog.youkuaiyun.com/ap0406708/article/details/38454375https://blog.youkuaiyun.com/ap0406708/article/details/38454375ap0406708Sat, 09 Aug 2014 10:44:56 +0800https://blog.youkuaiyun.com/ap0406708/article/details/7292596https://blog.youkuaiyun.com/ap0406708/article/details/7292596ap0406708Sat, 25 Feb 2012 02:05:45 +0800https://blog.youkuaiyun.com/ap0406708/article/details/7292588https://blog.youkuaiyun.com/ap0406708/article/details/7292588ap0406708Sat, 25 Feb 2012 01:50:08 +0800https://blog.youkuaiyun.com/ap0406708/article/details/83906169https://blog.youkuaiyun.com/ap0406708/article/details/83906169ap0406708Sun, 17 Apr 2011 23:31:09 +0800https://blog.youkuaiyun.com/ap0406708/article/details/83879807https://blog.youkuaiyun.com/ap0406708/article/details/83879807ap0406708Sun, 27 Mar 2011 23:28:34 +0800https://blog.youkuaiyun.com/ap0406708/article/details/83876812https://blog.youkuaiyun.com/ap0406708/article/details/83876812ap0406708Tue, 22 Mar 2011 23:45:23 +0800https://blog.youkuaiyun.com/ap0406708/article/details/83876810https://blog.youkuaiyun.com/ap0406708/article/details/83876810ap0406708Tue, 22 Mar 2011 23:43:44 +0800https://blog.youkuaiyun.com/ap0406708/article/details/83854271https://blog.youkuaiyun.com/ap0406708/article/details/83854271ap0406708Fri, 11 Mar 2011 23:57:02 +0800https://blog.youkuaiyun.com/ap0406708/article/details/4006184https://blog.youkuaiyun.com/ap0406708/article/details/4006184ap0406708Fri, 20 Mar 2009 00:41:00 +0800https://blog.youkuaiyun.com/ap0406708/article/details/4005348https://blog.youkuaiyun.com/ap0406708/article/details/4005348ap0406708Thu, 19 Mar 2009 18:03:00 +0800https://blog.youkuaiyun.com/ap0406708/article/details/4005336https://blog.youkuaiyun.com/ap0406708/article/details/4005336ap0406708Thu, 19 Mar 2009 17:59:00 +0800https://blog.youkuaiyun.com/ap0406708/article/details/4005316https://blog.youkuaiyun.com/ap0406708/article/details/4005316ap0406708Thu, 19 Mar 2009 17:54:00 +0800       zhao       zhao1       zhao2       zhao33．以上DOCTYPE,ELEMENT等一定要大写4.    空元素       = 5.       ]]>