loadFromDB-methods {maDB} | R Documentation |
loadFromDB
in package maDBi
This method allows to load data sets, stored previously into the database using the publishToDB
method, back into the R workspace. A list of available data sets in a database created by the maDB package is returned by the dbGetExperimentInfo
function (by submitting the connection to the database as parameter, a connection to a PostgreSQL database can be established by the dbConnect
function from the RdbiPgSQL).
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For further informations and examples refer to the package vignette (which can be opened using the openMadbVignette
).
loadFromDB(object=NULL,connection=NULL,name=NULL,pk=NULL,v=TRUE,...)
object |
An empty MadbSet or Sample object, generated either by link{newMadbSet} or new("MadbSet") for MadbSet objects, or by new("Sample") for Sample objects. |
connection |
The connection object to the database. |
name |
Only used if a MadbSet should be loaded from the database. Name should be equal to the experiment name that was stored into the database (use dbGetExperimentInfo to get a list of all available experiments in the database). |
pk |
For MadbSet: if a subset of arrays should be loaded from one experiment. As pk the primary keys of the corresponding signal channels should be submitted (to get a list of all signal channels, arrays, samples of a specific experiment in the maDB database use the dbGetExperimentInfo function by submitting also the name of the experiment along with the connection to the database as a parameter). |
v |
If TRUE additional informations will be printed to the console. |
... |
Additional parameters. Not used yet. |
MadbSet
object from the database.Sample
object from the database, (submit new("Sample"))
The usage of this method for EexprSet
objects is deprecated! Use the MadbSet
objects instead!