iapply: Array/Apply Iterator

Description Usage Arguments Value See Also Examples

Description

Returns an iterator over an array, which iterates over the array in much the same manner as the apply function.

Usage

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iapply(X, MARGIN)

Arguments

X

the array to iterate over.

MARGIN

a vector of subscripts. 1 indicates the first dimension (rows), 2 indicates the second dimension (columns), etc.

Value

The apply iterator.

See Also

apply

Examples

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a <- array(1:8, c(2, 2, 2))

# iterate over all the matrices
it <- iapply(a, 3)
as.list(it)

# iterate over all the columns of all the matrices
it <- iapply(a, c(2, 3))
as.list(it)

# iterate over all the rows of all the matrices
it <- iapply(a, c(1, 3))
as.list(it)


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