sample-methods {memisc}R Documentation

Take a Sample from a Data Frame-like Object

Description

The methods below are convenience short-cuts to take samples from data frames and data sets. They result in a data frame or data set, respectively, the rows of which are a sample of the complete data frame/data set.

Usage

## S3 method for class 'data.frame':
sample(x, size, replace = FALSE, prob = NULL, ...)
## S3 method for class 'data.set':
sample(x, size, replace = FALSE, prob = NULL, ...)

Arguments

x a data frame or data set.
size an (optional) numerical value, the sample size, defaults to the total number of rows of x.
replace a logical value, determines whether sampling takes place with or without replacement.
prob a vector of sampling probabities or NULL.
... further arguments, ignored.

Value

A data frame or data set.


[Package memisc version 0.95-17 Index]