PortfolioEffectHFT (version 1.7)

position_add: Add position in portfolio

Description

Adds position to an existing portfolio.

Usage

position_add(portfolio, symbol, quantity, time,priceData)

Arguments

portfolio

Portfolio object created using portfolio_create( ) function

symbol

Unique identifier of the instrument

quantity

One dimensional vector of position quantities or an integer number if quantity is constant

time

One dimensional vector of time values either as "yyyy-MM-dd hh:mm:ss" string or in milliseconds since the beginning of epoch.

priceData

Vector of (time, price) observations for market asset when external market data is used.

Value

See Also

portfolio_create

Examples

## Not run: 
# data(aapl.data) 
# data(goog.data) 
# data(spy.data) 
# portfolio=portfolio_create(priceDataIx=spy.data)
# portfolio_settings(portfolio,windowLength = '3600s',resultsSamplingInterval='60s')
# positionGOOG=position_add(portfolio,'GOOG',100,priceData=goog.data)  
# positionAAPL=position_add(portfolio,'AAPL',300,priceData=aapl.data) 
# result=compute(alpha_exante(portfolio),alpha_exante(positionGOOG),alpha_exante(positionAAPL)) 
# plot(alpha_exante(portfolio),alpha_exante(positionGOOG),alpha_exante(positionAAPL),
# legend=c('Portfolio','GOOG','AAPL'),title='Alpha')
# print(portfolio)
# 
# portfolio=portfolio_create(priceDataIx=spy.data)
# portfolio_settings(portfolio,windowLength = '3600s',resultsSamplingInterval='60s')
# positionGOOG=position_add(portfolio,'GOOG',c(100,200),time=c(1412256601000,1412266600000),
# priceData=goog.data) 
# positionAAPL=position_add(portfolio,'AAPL',c(300,150),time=c(1412266600000,1412276600000),
# priceData=aapl.data) 
# plot(expected_return(portfolio),title="Expected Return")
# 
# portfolio=portfolio_create(fromTime="2014-09-01 09:00:00", toTime="2014-09-14 16:00:00")
# portfolio_settings(portfolio,windowLength = '3600s',resultsSamplingInterval='60s')
# positionSPY=position_add(portfolio,'SPY',500)
# positionC=position_add(portfolio,'C',600)
# plot(expected_return(portfolio),title="Portfolio Expected Return")
# 
# portfolio=portfolio_create(fromTime="2014-10-02 09:30:00", toTime="2014-10-02 16:00:00")
# portfolio_settings(portfolio,windowLength = '3600s',resultsSamplingInterval='60s')
# positionSPY=position_add(portfolio,'SPY',500)
# positionC=position_add(portfolio,'C',600)
# positionGOOG=position_add(portfolio,'GOOG',100,priceData=goog.data) 
# position_add(portfolio,'AAPL',c(300,150),time=c(1412266600000,1412276600000),
# priceData=aapl.data)
# plot(expected_return(portfolio),title="Portfolio Expected Return")
# 
# portfolio=portfolio_create(fromTime="t-2", toTime="t")
# portfolio_settings(portfolio,windowLength = '3600s',resultsSamplingInterval='60s')
# positionSPY=position_add(portfolio,'SPY',500)
# positionC=position_add(portfolio,'C',600)
# plot(expected_return(portfolio),title="Portfolio Expected Return")
# ## End(Not run)