tdmReadDataset: Read data accoroding to 'opts' settings.

In TDMR: Tuned Data Mining in R

Description

Read the data accoring to the settings opts$READ.* and opts$TST.COL (see Details).

Usage

tdmReadDataset(opts)

Arguments

opts

list of options, we need here READ.TrnFn: [tdmReadTrain] function with argument opts for reading the training data and returning them in a data frame READ.NROW: [-1] read only that many rows from opts$filename. -1 for 'read all rows'. READ.TstFn: [NULL] function with argument opts for reading the test data and returning them in a data frame. If NULL then skip test file reading. TST.COL: ["TST.COL"] string, create a column with the name of this string in dset, which has 0 for training and 1 for test data path: used by READ.TrnFn to locate file dir.data: used by READ.TrnFn to locate file

Details

When opts$READ.TstFn==NULL, then only opts$READ.TrnFn is used.
When opts$READ.TstFn!=NULL, the following things happen in tdmReadDataset: Data are read from opts$filename and from opts$filetest. Both data sets are bound together, with a new column opts$TST.COL having '0' for the data from opts$filename and having '1' for the data from opts$filetest. The branch using opts$TST.COL is invoked either with umode="TST" in unbiasedRun or with opts$TST.kind="col" in tdmModCreateCVindex.

Value

dset, a data frame with all data read

See Also

tdmReadAndSplit

TDMR documentation built on March 3, 2020, 1:06 a.m.