pedquant
pedquant (Public Economic Data and QUANTitative analysis) provides an
interface to access public economic and financial data for economic
research and quantitative analysis. The functions are grouped into three
main categories,
- ed_* (economic data) functions load economic data from NBS and FRED;
- md_* (market data) functions load the forex, money, bond, stock, future market data from public data sources, including 163, Sina, qq finance and etc.
- pq_* (quantitative analysis) functions create technical indicators, visualization charts and industrial index etc for time series data.
The functions in this package are designed to write minimum codes for some common tasks in quantitative analysis process. Since the parameters to get data can be interactively specify, it’s very easy to start. The loaded data have been carefully cleansed and provided in a unified format.
pedquant package has advantages on multiple aspects, such as the
format of loaded data is a list of data frames, which can be easily
manipulated in data.table or
tidyverse packages; high performance on
speed by using data.table and
TTR; and interactive charts by
using echarts4r. Similar works
including tidyquant or
quantmod.
Installation
- Install the release version of
pedquantfrom CRAN with:
install.packages("pedquant")
- Install the developing version of
pedquantfrom github with:
devtools::install_github("shichenxie/pedquant")
Example
The following examples show you how to import data.
library(pedquant)
## import eocnomic data
dat1 = ed_fred('GDPCA')
#> 1/1 GDPCA
dat2 = ed_nbs(geo_type='nation', freq='quarterly', symbol='A010101')
## import market data
FAAG = md_stock(c('FB', 'AMZN', 'AAPL', 'GOOG'), date_range = '10y')
#> 1/4 fb
#> 2/4 amzn
#> 3/4 aapl
#> 4/4 goog
INDX = md_stock(c('^000001','^399001'), date_range = '10y')
#> 1/2 ^000001
#> 2/2 ^399001
# moving average crossover strategy
library(data.table)
# load data
data("dt_banks")
dtboc = md_stock_adjust(setDT(dt_banks)[symbol=='601988.SS'])
# added technical indicators
bocti = pq_addti(dtboc, x='close_adj', sma=list(n=200), sma=list(n=50))
# crossover signal
dtorders = copy(bocti[[1]])[,.(symbol, name, date, close_adj, sma_50, sma_200)
][sma_50 %x>% sma_200, `:=`(
type = 'buy', prices = close_adj
)][sma_50 %x<% sma_200, `:=`(
type = 'sell', prices = close_adj
)][order(date)
][, (c('type', 'prices')) := lapply(.SD, shift), .SDcols = c('type', 'prices')]
head(dtorders[!is.na(type)])
#> symbol name date close_adj sma_50 sma_200 type prices
#> 1: 601988.SS 中国银行 2009-04-27 2.175686 2.159212 2.154464 buy 2.169398
#> 2: 601988.SS 中国银行 2010-03-23 2.682837 2.685811 2.690783 sell 2.689302
#> 3: 601988.SS 中国银行 2010-05-06 2.618190 2.695508 2.694150 buy 2.669908
#> 4: 601988.SS 中国银行 2010-05-20 2.514756 2.677794 2.679346 sell 2.521220
#> 5: 601988.SS 中国银行 2011-04-27 2.332291 2.302393 2.299774 buy 2.318449
#> 6: 601988.SS 中国银行 2011-07-21 2.231820 2.285567 2.288007 sell 2.239067
# charting
e = pq_plot(dtboc, y='close_adj', addti = list(sma=list(n=200), sma=list(n=50)), orders = dtorders[!is.na(type)])
e[[1]]
#> NULL
Issues and Contributions
This package still on the developing stage. If you have any issue when using this package, please update to the latest version from github. If the issue still exists, report it at github page. Contributions in any forms to this project are welcome.