[R-SIG-Finance] adapting quantstrat/demo/luxor code

[Heling Yao]

Hi,

I'm trying to adapt luxor to load audusd H1 data, and changed the
symbol loading code to the following:

fx_str = 'AUDUSD'
exchange_rate(c(fx_str), tick_size=0.0001)

#getSymbols('AUDUSD', from=.from, to=.to, verbose=FALSE)
data.csv = read.csv('/opt/data/H1/tp/AUDUSD.csv', sep=',', header=TRUE)
data.xts = as.xts(data.csv[,2:6], as.POSIXct(strptime(data.csv[,1],
'%Y-%m-%d %H:%M:%S')))
colnames(data.xts) <- c('Open','High','Low','Close','Volume')
assign(fx_str, data.xts)


When I ran the code, I get:

[1] "AUD" "USD"
[1] "AUDUSD"
[1] "forex"
[1] "IB1"
[1] "2004-11-02 07:00:00 AUDUSD -1e+05 @ 0.7434"
[1] "2004-11-03 13:00:00 AUDUSD 1e+05 @ 0.7556"
[1] "2004-11-03 13:00:00 AUDUSD 1e+05 @ 0.754"
[1] "2004-11-08 23:00:00 AUDUSD -1e+05 @ 0.757"
[1] "2004-11-10 10:00:00 AUDUSD 1e+05 @ 0.7612"
[1] "2004-11-11 11:00:00 AUDUSD -1e+05 @ 0.7583"
[1] "2004-11-11 15:00:00 AUDUSD 1e+05 @ 0.7617"
[1] "2004-11-23 05:00:00 AUDUSD -1e+05 @ 0.7795"
[1] "2004-11-24 08:00:00 AUDUSD 1e+05 @ 0.7883"
[1] "2004-11-29 04:00:00 AUDUSD -1e+05 @ 0.7865"
[1] "2004-11-29 09:00:00 AUDUSD -1e+05 @ 0.7837"
[1] "2004-12-04 04:00:00 AUDUSD 1e+05 @ 0.7818"
Error in getPrice(Prices, Symbol) :
  subscript out of bounds: no column name containing AUDUSD
Calls: updatePortf -> .updatePosPL -> getPrice
Execution halted

But when I add:
AUDUSD = to.hourly(AUDUSD)
AUDUSD = align.time(to.hourly(AUDUSD), 60*60)

It runs fine. But I guess the above is not necessary for H1 data?

sample data:
Time,Open,High,Low,Close,Volume
2004-10-25 00:00:00,0.7429,0.7446,0.7426,0.7438,1445.0
2004-10-25 01:00:00,0.7436,0.7447,0.743,0.7436,1209.0
2004-10-25 02:00:00,0.7436,0.7444,0.7431,0.744,1011.0
2004-10-25 03:00:00,0.7438,0.7448,0.7433,0.7444,1078.0
2004-10-25 04:00:00,0.7444,0.7449,0.7436,0.7442,838.0
2004-10-25 05:00:00,0.7443,0.7454,0.7431,0.7444,1126.0
2004-10-25 06:00:00,0.7445,0.7456,0.7437,0.7443,1542.0
2004-10-25 07:00:00,0.7443,0.7469,0.7433,0.7468,1834.0
2004-10-25 08:00:00,0.7469,0.7486,0.7466,0.7483,2098.0


After googling, I guess it could be timezone related. But still could
not solve the problem.


Thanks in advance,

Heling