两个问题
1. 关于package的安装
> install.packages("tseries")
--- Please select a CRAN mirror for use in this session ---
警告: unable to access index for repository
http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/2.5
also installing the dependencies 'quadprog', 'zoo'
试开URL’
http://cran.cnr.Berkeley.edu/bin ... quadprog_1.4-11.zip
Content type 'application/zip' length 38635 bytes
打开了URL
downloaded 37Kb
试开URL’
http://cran.cnr.Berkeley.edu/bin ... b/2.5/zoo_1.4-0.zip
Content type 'application/zip' length 778522 bytes
打开了URL
downloaded 760Kb
试开URL’
http://cran.cnr.Berkeley.edu/bin ... tseries_0.10-12.zip
Content type 'application/zip' length 422775 bytes
打开了URL
downloaded 412Kb
package 'quadprog' successfully unpacked and MD5 sums checked
package 'zoo' successfully unpacked and MD5 sums checked
package 'tseries' successfully unpacked and MD5 sums checked
The downloaded packages are in
C:\Documents and Settings\Administrator\Local Settings\Temp\RtmpPLSlyb\downloaded_packages
updating HTML package descriptions
说明安装成功了吗?
为什么没有这个seqplot.ts(rs,rl)这个函数?是不是plot.ts?
2. 不同值域怎么解决?
" a和b值域不同时,先用plot产生图形设备,指定大小,然后用lines"
如果
> a=c(1,2,3,4,5)
> b=c(7,4,3,2,1)
> plot(a)
> lines(b)
那么b的第一个点7就出不来。这个怎么弄?