【发布时间】：2014-03-05 00:07:05
【问题描述】：
我在搜索某些推文时遇到了编码问题。以下是我的代码（身份验证后）：
load("twitteR_credentials")
registerTwitterOAuth(twitCred)
download.file(url="http://curl.haxx.se/ca/cacert.pem", destfile="cacert.pem")
mach_tweets = searchTwitter("bradesco", n=10, lang="pt", cainfo="cacert.pem", encoding='utf-8')
mach_text = sapply(mach_tweets, function(x) x$getText())
当我打印 March_text 的内容时，我得到：
[1] "Sexta meu amor, eu amo você! (@ Bradesco Promotora) http://t.co/evFs3BnvbV"
[2] "RT @LeiSecaFortal: “@luciadeboraa: @LeiSecaFortal acidente entre tópic 06 e um palio na Av. Antônio sales em frente ao bradesco.transito le…"
[3] "RT @LeiSecaFortal: “@luciadeboraa: @LeiSecaFortal acidente entre tópic 06 e um palio na Av. Antônio sales em frente ao bradesco.transito le…"
[4] "RT @DanielSoaresmh: I'm at Bradesco (Cajazeiras, PB) http://t.co/Zl3pgZ01ND"
[5] "RT @EquipeManuGTeen: Quem já comprou seu ingresso pro show da @manugavassi em SP, dia 6/4 no Teatro Bradesco?"
[6] "I'm at Bradesco (Vitória da Conquista, BA) http://t.co/wmWPnRsY7z"
[7] "RT @proconspoficial: Bradesco não pode bloquear ou cancelar cartão de crédito de inadimplente com o banco http://t.co/zjf27oAKkK"
[8] "ALÔ EMBU BUAÇU! \nA Estrela lojas e o banco Bradesco agora uniram-se para facilitar sua vida. EXATAMENTE! Evite... http://t.co/nUvYQ3J2o3"
[9] "SERVIÇOS: No @CidadeJardimRN temos caixas eletrônicos do Banco do Brasil, Banco 24h, Caixa Econômica, Bradesco, Santander, ITAÚ E HSBC."
[10] "RT @estelanaime: @Bradesco se encontrar um leitor de código de barras."
有人知道如何解决这个编码问题吗？
这里有一些信息：
sessionInfo()
R 版本 3.0.2 (2013-09-25) 平台：i386-w64-mingw32/i386（32位）
语言环境：
[1] LC_COLLATE=葡萄牙语_巴西.1252 LC_CTYPE=葡萄牙语_巴西.1252 LC_MONETARY=葡萄牙语_巴西.1252 LC_NUMERIC=C
[5] LC_TIME=葡萄牙语_巴西.1252
附加的基础包： [1] graphics grDevices utils datasets stats methods base
其他附加包：
[1] seqinr_3.0-7 wordcloud_2.4 RColorBrewer_1.0-5 Rcpp_0.11.0 tm_0.5-10 twitteR_1.1.7 rjson_0.2.13
[8] ROAuth_0.9.3 digest_0.6.4 RCurl_1.95-4.1 bitops_1.0-6 sp_1.0-14 ggplot2_0.9.3.1
通过命名空间加载（未附加）：
[1] colorspace_1.2-4 dichromat_2.0-0 grid_3.0.2 gtable_0.1.2 labeling_0.2 lattice_0.20-23 MASS_7.3-29 munsell_0.4.2
[9] parallel_3.0.2 plyr_1.8 proto_0.3-10 reshape2_1.2.2 scales_0.2.3 slam_0.1-31 stringr_0.6.2 tools_3.0.2
我使用的是 Windows 7 和 Rstudio 版本 0.97.336
更新：使用 linux 机器可以正常工作。
sessionInfo()
R 版本 3.0.2 (2013-09-25) 平台：x86_64-pc-linux-gnu（64位）
语言环境：
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C LC_TIME=C LC_COLLATE=C LC_MONETARY=C LC_MESSAGES=C
[7] LC_PAPER=C LC_NAME=C LC_ADDRESS=C LC_TELEPHONE=C LC_MEASUREMENT=C LC_IDENTIFICATION=C
附加的基础包： [1] stats graphics grDevices utils datasets methods base
其他附加包：
[1] twitteR_1.1.7 rjson_0.2.13 seqinr_3.0-7 tm_0.5-10 ggplot2_0.9.3.1 ROAuth_0.9.3 digest_0.6.3
[8] RCurl_1.95-4.1 bitops_1.0-6 wordcloud_2.4 RColorBrewer_1.0-5 Rcpp_0.10.6 data.table_1.8.10 RJDBC_0.2-1
[15] rJava_0.9-4 DBI_0.2-7
通过命名空间加载（未附加）：
[1] MASS_7.3-29 colorspace_1.2-4 dichromat_2.0-0 grid_3.0.2 gtable_0.1.2 labeling_0.2 munsell_0.4.2 parallel_3.0.2
[9] plyr_1.8 proto_0.3-10 reshape2_1.2.2 scales_0.2.3 slam_0.1-31 stringr_0.6.2 tools_3.0.2
【问题讨论】：