Get index positions from a Hilbert Curve
position(h, ..., n = 10L)# S3 method for data.frame
position(h, ..., n, idx = 1, attach = TRUE)
# S3 method for matrix
position(h, ..., n, idx = 1, attach = TRUE)
# S3 method for numeric
position(h, ..., n)
# S3 method for integer
position(h, ..., n)
position64(h, ..., n = 10L)
# S3 method for data.frame
position64(h, ..., n, idx = 1, attach = TRUE)
# S3 method for matrix
position64(h, ..., n, idx = 1, attach = TRUE)
# S3 method for double
position64(h, ..., n)
# S3 method for integer
position64(h, ..., n)
# S3 method for numeric
position64(h, ..., n)
# S3 method for integer64
position64(h, ..., n)
# S3 method for character
position64(h, ..., n)
# S3 method for bitstring
position64(h, ..., n)
One of: Integer vector, data.frame, or matrix.
Unused.
Exponent to the dimensions of the underlying grid. The Hilbert
Curve indices are based on a 2^n x 2^n grid. This number
must be less than 15 due to the 32-bit implementation of R. This must
be the same as the n used in index.
Column name or index containing the Hilbert Curve indices.
If TRUE, adds the position as new columns to the given
data.frame/matrix. If h is a data.frame, then the
columns are named x and y; otherwise, it is two unnamed columns at
the end of the matrix.
A data.frame containing the positions as integer
columns x and y, or the original object
(data.frame or matrix) with the columns attached.
When n is greater than 15, the positions are of
type bit64::integer64.