trotter (version 0.6)

[,SPV-method: Retrieve a Selection by Index

Description

Access a selection (combination with replacement) stored in an SPV instance by index.

Usage

"["(x, i, j, drop)

Arguments

x

an instance of SPV.

i

an index specifying the position of the sought selection.

j

not used.

drop

not used.

Value

the selection located at position i in pseudo-vector x

Details

The selection at index i of pseudo-vector x is not actually stored in memory but calculated as needed. The extract method is used solely for interpretation.

See Also

Permutations Pseudo-Vector ppv

Combinations Pseudo-Vector cpv

Amalgams Pseudo-Vector apv

Subsets Pseudo-Vector sspv