※ 引述《celestialgod (攸蓝)》之铭言：
因为xls可以存取UTF-8位元，昨天就有想到可以直接读取xls。
但rJava这个package一直装不进去...
install.packages('rJava') #这部分没有问题
library(rJava) #这边就产生下面的错误讯息
Error : .onLoad failed in loadNamespace() for 'rJava', details:
call: fun(libname, pkgname)
error: No CurrentVersion entry in Software/JavaSoft registry! Try
re-installing Java and make sure R and Java have matching architectures.
Error: package or namespace load failed for ‘rJava’
Java版本不太会查，不知道是不是这个？
已经有用Java upload检查过了是最新版，
build 1.8.0_45-bl5
截图如下：
http://imgur.com/bUPpe9f
补上sessionInfo()
R version 3.2.1 (2015-06-18)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1
locale:
[1] LC_COLLATE=Chinese (Traditional)_Taiwan.950
[2] LC_CTYPE=Chinese (Traditional)_Taiwan.950
[3] LC_MONETARY=Chinese (Traditional)_Taiwan.950
[4] LC_NUMERIC=C
[5] LC_TIME=Chinese (Traditional)_Taiwan.950
: xls部分
: 好读上色版：http://pastebin.com/2L5UrhSq
: library(rJava)
: library(xlsx)
: library(data.table)
: library(magrittr)