is.factor-methods {PivotalR} | R Documentation |
db.obj
object is a
categorical object This function detects whether a db.obj
object is a
categorical object.
## S4 method for signature 'db.obj' is.factor(x)
x |
A |
A logical value. When all columns of db.obj
are
categorical variables, this function returns TRUE
.
Author: Predictive Analytics Team at Pivotal Inc.
Maintainer: Frank McQuillan, Pivotal Inc. fmcquillan@pivotal.io
as.factor,db.obj-method
converts a column
db.obj
of into categorical variables.
## Not run: ## set up the database connection ## Assume that .port is port number and .dbname is the database name cid <- db.connect(port = .port, dbname = .dbname, verbose = FALSE) ## create a table from the example data.frame "abalone" x <- as.db.data.frame(abalone, conn.id = cid, verbose = FALSE) ## set sex to be a categorical variable x$sex <- as.factor(x$sex) is.factor(x$sex) is.factor(x) db.disconnect(cid, verbose = FALSE) ## End(Not run)