| sample {arules} | R Documentation |
Random Samples and Permutations
Description
Provides the generic function sample() and methods to sample from transactions and
associations.
Usage
## S4 method for signature 'itemMatrix'
sample(x, size, replace = FALSE, prob = NULL, ...)
## S4 method for signature 'associations'
sample(x, size, replace = FALSE, prob = NULL, ...)
Arguments
x |
object to be sampled from (a set of associations or transactions). |
size |
sample size. |
replace |
a logical. Sample with replacement? |
prob |
a numeric vector of probability weights. |
... |
further arguments. |
Value
An object of the same class as x.
Author(s)
Michael Hahsler
See Also
Other preprocessing:
discretize(),
hierarchy,
itemCoding,
merge()
Other associations functions:
abbreviate(),
associations-class,
c(),
duplicated(),
extract,
inspect(),
is.closed(),
is.generator(),
is.maximal(),
is.redundant(),
is.significant(),
is.superset(),
itemsets-class,
match(),
rules-class,
sets,
size(),
sort(),
unique()
Other itemMatrix and transactions functions:
abbreviate(),
crossTable(),
c(),
duplicated(),
extract,
hierarchy,
image(),
inspect(),
is.superset(),
itemFrequencyPlot(),
itemFrequency(),
itemMatrix-class,
match(),
merge(),
random.transactions(),
sets,
size(),
supportingTransactions(),
tidLists-class,
transactions-class,
unique()
Examples
data("Adult")
## sample with replacement
s <- sample(Adult, 500, replace = TRUE)
s