search for: tradetime

Displaying 3 results from an estimated 3 matches for "tradetime".

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2013 Sep 18
1
Design for classes with database connection
...gard to the other variables. Something like this: .mmstruct <- setClass('mmstruct', representation( name = "character", index = "array", N = "integer", K = "integer", compiD = "array", secID = "array", tradetime = "POSIXlt", flag = "array", price = "array", vol = "array", other = "data.frame")) 2. To enable a lightweight ordering function, the class should basically create an SQLite database on construction and delete it if 'rm()' is...
2011 Nov 10
1
Help: sqlSave Error
...E, rownames=FALSE) Error: sqlSave(con, highVol, "jrgchis.dbo.futuresHighVol", append = TRUE, : 42S01 2714 [Microsoft][ODBC SQL Server Driver][SQL Server] 'futuresHighVol' already exist [RODBC] ERROR: Could not SQLExecDirect 'CREATE TABLE jrgchis.dbo.futuresHighVol ("TradeTime" varchar(255), "vol" float)' Please Help!!! -- View this message in context: http://r.789695.n4.nabble.com/Help-sqlSave-Error-tp4022523p4022523.html Sent from the R help mailing list archive at Nabble.com.
2011 Dec 14
1
A Question Re ISOdatetime
Dear all, I am using the ISOdatetime function like this: test.info$TradeTime = with(test.info, mapply(FUN = ISOdatetime, Year, Month, Day, Hour, Minute, 60, "EST")) Where Year, Month etc are all numeric. I think ISOdatetime should return a POSIXct object. However, the result I obtained from the line above is all numeric. Could you please advise? I wish to get P...