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RE: [amibroker] E-Signal (6 months of data)



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<FONT face=Arial color=#0000ff 
size=2>Daniel,
it 
depends on the subscription you buy. If you pay for 50 symbols then updating 150 
is a pain and not very accurate. Even with wait to backfill checked it will 
require several passes to get all the data. You may want to consider designing a 
filter that chooses stocks based on EOD data then draw your interday data from a 
more manageable universe....
 
Regards, 
Jayson 
<FONT face=Tahoma 
size=2>-----Original Message-----From: danielwardadams 
[mailto:danielwardadams@xxxxxxxxx]Sent: Monday, March 29, 2004 9:27 
PMTo: amibroker@xxxxxxxxxxxxxxxSubject: [amibroker] More 
questions ...Assuming I subscribe to eSignal so I can 
have access to their 6 months of 1 minute data, I have the following 
questions:(1) I would want to import the entire 6 months for all the 
stocks I'm interested in. I've seen some references to backfilling databases 
taking all night. If I'm only interested in, say, < 150 stocks, any 
idea how long this might take?(2) Once I've imported data for the full 6 
months, any ideas how long it might take to do daily updates?(3) I 
assume I could compress the intraday data into daily data and backtest based 
on both intraday and EOD signals, right? I saw some messages from a week or 
two ago about this but I think they were concerned about resolving EOD and 
intraday data differences -- yet if I'm "creating" my daily data from my 
intraday (compressed) data, need this be a concern (??) (Per the earlier 
messages, I should also filter out data outside of normal market 
hours).(4) My buy signals are based on EOD data but all my sells are done 
with intraday trailing stops. Are there any (obvious) reasons why such a 
system couldn't be accurately backtested over the 6 month range with this 
type of compressed data?Any thoughts on the above would be 
appreciated.DanSend BUG REPORTS to 
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