arulesSequences (version 0.1-3)

read_baskets: Read Transaction Data

Description

Read transaction data in basket format (with additional temporal or other information) and create an object of class transactions.

Usage

read_baskets(con, sep = "[ ]+", info = NULL, iteminfo = NULL)
con{an object of class connection or file name.}
  sep{a regular expression specifying how fields are separated
    in the data file.}
  info{a character vector specifying the header for columns with
    additional transaction information.}
  iteminfo{a data frame specifying (additional) item information.}
Each line of text represents a transaction where items are
    separated by a pattern matching the regular expression specified
    by sep.
    Columns with additional information such as customer or time (event)
    identifiers are required to come before any item identifiers and must
    be specified by info.
    Sequential data are identified by the presence of the column identifiers
    sequenceID (sequence or customer identifier) and eventID
    (time or event identifier) of slot transactionInfo.
    The row names of iteminfo must match the item identifiers
    present in the data. However, iteminfo need not contain a
    labels column.
An object of class transactions.[object Object]
Currently, it is not checked if column eventID defines a
    temporal order. sequenceID and eventID will be coerced
    to factor if necessary.
    For efficiency, the item labels are not sorted and, thus, are in the
    order they appear in the data.
Class
    timedsequences,
    transactions,
    function
    cspade.
## read example data
x <- read_baskets(con  = system.file("misc", "zaki.txt", package = 
                                     "arulesSequences"),
		  info = c("sequenceID","eventID","SIZE"))
as(x, "data.frame")
file