md_stock provides an interface to query EOD (end of date) stock prices.
md_stock(symbol, source = "yahoo", type = "history", freq = "daily", date_range = "3y", from = NULL, to = Sys.Date(), adjust = FALSE, print_step = 1L, ...)
| symbol | symbols of stock shares. |
|---|---|
| source | the available data sources are 'yahoo' (https://finance.yahoo.com) and '163' (https://money.163.com). |
| type | the data type, including history, adjfactor and spot. Default is history. |
| freq | default is daily. It supports daily, weekly and monthly for yahoo data; daily for 163 data. |
| date_range | date range. Available value including '1m'-'11m', 'ytd', 'max' and '1y'-. Default is '3y'. |
| from | the start date. Default is NULL. |
| to | the end date. Default is current system date. |
| adjust | whether to adjust the OHLC prices. If it is NULL or FALSE, return the original data. Default is FALSE. For the yahoo data, the adjustment is based on the close_adj; for the 163 data, the adjustment is based on the cumulative products of close/close_prev. |
| print_step | A non-negative integer. Print symbol name by each print_step iteration. Default is 1L. |
| ... | Additional parameters. |
if (FALSE) { # Example I # query history prices from yahoo dt_yahoo1 = md_stock(symbol=c("^GSPC", "000001.SS")) # FAANG FAANG = md_stock(c('FB', 'AMZN', 'AAPL', 'NFLX', 'GOOG'), date_range = 'max') # for Chinese shares/fund ## the symbol without suffix dt_yahoo2 = md_stock(c("000001", "^000001", "512510")) ## the symbol with suffix dt_yahoo3 = md_stock(c("000001.sz", "000001.ss")) # adjust factors, splits and dividend dt_adj = md_stock(symbol=c("AAPL", "000001.SZ", "000001.SS"), type='adjfactor', date_range='max') # Example II # query history prices from 163 dt1 = md_stock(symbol=c('600000', '000001', '^000001', '^399001'), source="163") # valuation ratios (pe, pb, ps) # only available for stock shares in sse and szse dt2 = md_stock(symbol=c('600000', '000001', '^000001', '^399001'), source="163", valuation = TRUE) # Example III # query spot prices dt_spot1 = md_stock(symbol=c('600000.SS', '000001.SZ', '000001.SS', '399001.SZ'), type='spot', source="163") # query spot prices of all A shares in sse and szse dt_spot2 = md_stock(symbol='a', source="163", type='spot') # query spot prices of all A/B shares and index in sse and szse dt_spot3 = md_stock(symbol=c('a', 'b', 'index'), source="163", type='spot') # show spot prices and sector/industry dt_spot4 = md_stock(symbol = c('a', 'b', 'index', 'fund'), source = '163', type = 'spot', show_tags = TRUE) # Example IV # query company information, including profile, IPO, structure of income, structure of employee dt_info = md_stock('600036', type = 'info') # query structure of income in history only dt_info2 = md_stock('600036', type = 'info', str_income_hist = TRUE) }