我从 Vincent Goulet 为 Windows XP 安装了一个修改后的 Emacs 版本，我想使用 ess-remote 运行和编辑包含在远程 Unix 服务器上的 R 脚本。经过大量搜索后，我可以通过以下方式连接到远程 R 会话：
- 打开一个shell提示符
M-x shell - 输入以下命令：
plink -X -C username@server - 输入密码后，我用一个简单的命令在 shell 中启动 R
R - 使用命令将其分配为远程进程
M-x ess-remote
虽然我能够成功地与 R 交互，但我总是会收到双重提示，更糟糕的是，如果打开某个函数的帮助文件，我会在同一个 R 进程缓冲区中看到乱码文本，而不是打开一个带有清晰 R 帮助的新缓冲区文本。如何让任何帮助缓冲区像通常的 emacs 和 R 交互一样在单独的窗口中打开，以及如何在执行 shell 时摆脱双重提示？
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
c:\Documents and Settings\username>plink -X -C username@remoteserver
plink -X -C username@remoteserver
username@remoteserver's password:
[username@remoteserver ~]$ R
R
R version 2.11.0 (2010-04-22)
Copyright (C) 2010 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.
Natural language support but running in an English locale
R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.
Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.
Welcome at Sat Jul 24 11:50:45 2010
>
> options(STERM='iESS')
options(STERM='iESS')
>
> x <- c(1,2,3)
>
> x
[1] 1 2 3
>
> ?mean(x)
[?1049h[?1h=[24;1H[Kmean package:base R Documentation
Arithmetic Mean
Description:
Generic function for the (trimmed) arithmetic mean.
Usage:
mean(x, ...)
## Default S3 method:
mean(x, trim = 0, na.rm = FALSE, ...)
Arguments:
x: An R object. Currently there are methods for numeric/logical
vectors and date, date-time and time interval objects, and
for data frames all of whose columns have a method. Complex
vectors are allowed for 'trim = 0', only.
trim: the fraction (0 to 0.5) of observations to be trimmed from
[24;1H[K:[24;1H[24;1H[K 在计算平均值之前，'x' 的每一端。trim [24;1H[K: [24;1H[24;1H[K 超出该范围的值被视为最近的端点。
na.rm: a logical value indicating whether 'NA' values should be
stripped before the computation proceeds.
...: further arguments passed to or from other methods.
Value:
For a data frame, a named vector with the appropriate method being
applied column by column.
If 'trim' is zero (the default), the arithmetic mean of the values
in 'x' is computed, as a numeric or complex vector of length one.
If 'x' is not logical (coerced to numeric), numeric (including
integer) or complex, 'NA_real_' is returned, with a warning.
If 'trim' is non-zero, a symmetrically trimmed mean is computed
with a fraction of 'trim' observations deleted from each end
before the mean is computed.
References:
[24;1H[K:[24;1H[24;1H[K Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) _The New S
[24;1H[K:[24;1H[24;1H[K Language_. Wadsworth & Brooks/Cole.
[24;1H[K:
[24;1H[24;1H[K
[24;1H[K:[24;1H[24;1H[KSee Also:
[24;1H[K:
[24;1H[24;1H[K
[24;1H[K:[24;1H[24;1H[K 'weighted.mean', 'mean.POSIXct', 'colMeans' for row and column
[24;1H[K:
[24;1H[24;1H[K means.
[24;1H[K:[24;1H[24;1H[K
[24;1H[K:
[24;1H[24;1H[KExamples:
[24;1H[K:[24;1H[24;1H[K
[24;1H[K:
[24;1H[24;1H[K x <- c(0:10, 50)
[24;1H[K:[24;1H[24;1H[K xm <- mean(x)
[24;1H[K:
[24;1H[24;1H[K c(xm, mean(x, trim = 0.10))
[24;1H[K:[24;1H[24;1H[K
[24;1H[K:
[24;1H[24;1H[K mean(USArrests, trim = 0.2)
[24;1H[K:[24;1H[24;1H[K
[24;1H[K:
[24;1H[24;1H[K
[24;1H[K:[24;1H[24;1H[K[24;1H[K(END)
[24;1H[24;1H[K[24;1H[K(END) [24;1H[24;1H[K[24;1H[K(END)
[24;1H[24;1H[K[24;1H[K(END) [24;1H[24;1H[K[24;1H[K(END)
[24;1H[24;1H[K[24;1H[K(END) [24;1H[24;1H[K[24;1H[K(END)
[24;1H[24;1H[K[24;1H[K(END) [24;1H[24;1H[K[24;1H[K(END)
[24;1H[24;1H[K[24;1H[K(END) [24;1H[24;1H[K[24;1H[K(END)
[24;1H[24;1H[K[24;1H[K(END) [24;1H[24;1H[K[24;1H[K(END)
[24;1H[24;1H[K[24;1H[K(END) [24;1H[24;1H[K[24;1H[K(END)
[24;1H[24;1H[K[24;1H[K(END) [24;1H[24;1H[K[24;1H[K(END)
以下是 site-start.el tramp 包含的内容以供参考：
(require 'tramp)
;(setq tramp-chunksize "500")
(setq tramp-default-method "plink")
(setq exec-path
(cons
(expand-file-name "C:/putty_shortcut/")
exec-path))