R (>= 2.10.0), methods, DBI, TSdbi (>= 2011.11-1), tframe,
tfplot, tframePlus, zoo
tframePlus, TSsql, TSMySQL, TSSQLite, TShistQuote
tframePlus, TSsql, TSMySQL, TSSQLite, TSmisc, zoo
TSMySQL, TSSQLite, TSPostgreSQL, TSodbc, TSfame, TSpadi,
TShistQuote, TSgetSymbol
TSMySQL, TSSQLite, TSPostgreSQL, TSodbc, TSfame, TShistQuote,
TSgetSymbol