Digest2int
hash arbitrary string to integer
Description
The digest2int function calculates integer hash of an arbitrary
string. This is useful for randomized experiments, feature hashing, etc.
Usage
digest2int(x, seed = 0L)
Arguments
x |
An arbitrary character vector. |
seed |
an integer for algorithm initial state. Function will produce different hashes for same input and different seed values. |
Value
The digest2int function returns integer vector of the same length as
input vector x.
Author(s)
Dmitriy Selivanov selivanov.dmitriy@gmail.com for the R interface; Bob Jenkins for original implementation http://www.burtleburtle.net/bob/hash/doobs.html
References
Jenkins's one_at_a_time hash:
https://en.wikipedia.org/wiki/Jenkins_hash_function#one_at_a_time.
See Also
digest
Examples
current <- digest2int("The quick brown fox jumps over the lazy dog", 0L)
target <- 1369346549L
stopifnot(identical(target, current))