Displaying 2 results from an estimated 2 matches for "mmstructbase".
2013 Sep 09
1
Package installation and path.package
...empfile(pattern = "mmstructDB",
tmpdir = file.path(path.package("mmstruct"),
"data", "databases"),
fileext = ".db")
return(db.path)
}
.mmstructBASE <- setClass("mmstructBASE",
representation("VIRTUAL",
dbName = "character",
dbTable = "...
2013 Sep 18
1
Design for classes with database connection
...ecute queries on the database tables. By this, I can use the table sorting of SQLite (e.g. by constructing an index for each important variable). I assume this is faster and more efficient than programming something on my own - why reinventing the wheel? For this I would use VIRTUAL classes like:
.mmstructBASE <- setClass('mmstructBASE', representation(
dbName = "character",
dbTable = "character"))
.mmstructDB <- setClass('mmstructDB', representation(
conn = "SQLiteConnection"),
contains = c("mmstructBASE"))
.mmstruc...