【发布时间】：2015-07-07 12:42:37
【问题描述】：
我正在使用 quantmod 函数 getSymbols.csv 将文件上传到 R。但是，一旦我上传了文件，日期似乎就丢失了，而且所有的日期都是一样的。
我使用以下代码上传 100 个股票代码：
getSymbols.csv(symbols, env=parent.frame(), dir="E:/data/CData_Files_NB/",
return.class = "xts", extension="csv")
确实都上传了，但对于每个股票代码，整个历史的日期都是相同的？？
[1] "SHFJ" "FSRJ" "RDFJ" "GRTJ" "MTNJ" "SLMJ" "SBKJ" "WHLJ"
[9] "NTCJ" "LHCJ" "MRFJ" "SACJ" "PPCJ" "SGLJ" "MMIJ" "IMPJ"
[17] "TRUJ" "GFIJ" "SOLJ" "TSHJ" "KAPJ" "VODJ" "NPKJ" "TKGJ"
[25] "HARJ" "RMIJ" "SHPJ" "MDCJ" "ZEDJ" "SAPJ" "DSYJ" "NPNJN"
[33] "RMHJ" "MURJ" "BGAJ" "ANGJ" "GNDJ" "TFGJ" "AEGJ" "BATJ"
[41] "EMIJ" "APNJ" "EQSJ" "NHMJ" "ATTJ" "REMJ" "FPTJ" "STXDIVJ"
[49] "CMLJ" "CVHJ" "PIKJ" "MPCJ" "AVIJ" "BLUJ" "CLSJ" "IPLJ"
[57] "BVTJ" "INLJ" "RESJ" "VKEJ" "NEDJ" "GPLJ" "STX40J" "HYPJ"
[65] "TBSJ" "EXXJ" "BAWJ" "PGRJ" "AWAJ" "KIOJ" "SPPJ" "PNCJ"
[73] "ARIJ" "LEWJ" "DLTJ" "ACLJ" "PGLJ" "AIPJ" "RLOJ" "MNDJ"
[81] "REBJ" "LBHJ" "GRFJ" "NGPLTJ" "GLDJ" "CLRJ" "DTCJ" "ADHJ"
[89] "SPGJ" "HLMJ" "TORJ" "MSMJ" "DBXWDJ" "INGJ" "MIXJ" "FGLJ"
[97] "APFJ" "ILVJ" "DBXUSJ" "WEZJ"
这是我的意思的一个例子。日期都被加载为相同的（最后）日期？
> head(SHFJ)
SHFJ.Open SHFJ.High SHFJ.Low SHFJ.Close SHFJ.Volume SHFJ.Adjusted
2015-07-07 5.62 5.62 5.58 5.58 719.1 5.58
2015-07-07 5.53 5.71 5.53 5.71 1021.6 5.71
2015-07-07 5.71 5.80 5.71 5.80 381.4 5.80
2015-07-07 5.80 5.80 5.75 5.75 52.8 5.75
2015-07-07 5.75 5.75 5.62 5.64 33.5 5.64
2015-07-07 5.67 5.75 5.67 5.75 189.2 5.75
我做错了什么？可能与 CSV 文件中的格式有关，还是与时间序列 xts 或动物园类有关？ 任何帮助将不胜感激。
【问题讨论】：
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我不太确定如何将那里的建议应用到我正在做的事情中。我可以看到相似之处，但不同之处在于我需要上传 100 个符号。我还通过以下方式上传检查了 csv 文件的格式是否正确： FormatCheck="SHFJ.csv" Stock