获取沪深300、中证500、创业板指和国债指数的行情
> index_symbols <- c("HS300","ZZ500","CYBZ","GZZS")
> index_symbols
[1] "HS300" "ZZ500" "CYBZ" "GZZS"
> getSymbols(Symbols = index_symbols, src = "csv", dir = "data/symbol_data")
[1] "HS300" "ZZ500" "CYBZ" "GZZS"
> head(HS300)
HS300.Open HS300.High HS300.Low HS300.Close HS300.Volume
2008-01-02 5349.763 5404.928 5283.448 5385.103 45668710
2008-01-03 5381.147 5422.673 5315.948 5422.034 64645878
2008-01-04 5430.630 5499.085 5422.456 5483.650 51746420
2008-01-07 5480.442 5569.152 5455.501 5556.593 53485409
2008-01-08 5575.950 5630.624 5485.234 5528.054 64899501
2008-01-09 5507.116 5614.678 5490.305 5613.758 46796872
HS300.Adjusted
2008-01-02 5385.103
2008-01-03 5422.034
2008-01-04 5483.650
2008-01-07 5556.593
2008-01-08 5528.054
2008-01-09 5613.758
>
csv的存储路径
当前工作目录
|---data
|---symbol_data
|---HS300.csv
|---ZZ500.csv
|---CYBZ.csv
|---GZZS.csv
csv内容结构
date,o,h,l,c,v,a
2018-10-19,3017.749,3137.747,3009.498,3134.945,98839688.000,3134.945
2018-10-18,3097.790,3097.790,3043.382,3044.392,73771968.000,3044.392
2018-10-17,3140.684,3149.134,3062.554,3118.246,76837138.000,3118.246
2018-10-16,3128.576,3166.092,3089.367,3100.974,68887721.000,3100.974
2018-10-15,3173.847,3183.130,3120.231,3126.452,69605023.000,3126.452
表头的含义：
- date 交易日期
- o 开盘价
- h 最高价
- l 最低价
- c 收盘价
- v 成交量
- a 调整后收盘价，没有就直接赋值为收盘价
