scidb (version 1.2-0)

peek: Sample from populated cells in a SciDB array.

Description

Return an R dataframe containing samples from an input array.

Usage

peek (x, n=50L, prob=1)
iqdf (x, n=50L, prob=1)

Arguments

x

A scidb or scidbdf object.

n

Return at most n elements.

prob

A number in the interval (0, 1] indicating the probability of a cell being included in the sample.

Value

An R data frame.

Details

Peek at non-empty values of an array, returning at most n values. Use peek to get a sense of the data contained in an array.

The function always returns results in data frame form, including the array coordinates as data frame variables.

See Also

bernoulli

Examples

## Not run: 
# x <- as.scidb(iris)
# peek(x)
# ## End(Not run)