Thin access to the compiled core that ships in
rmoriebricklayer. rmoriedata links that core via
LinkingTo: rmoriebricklayer, so these functions call the exact same
kernels used across the rmorie family – no duplicated C code. They
back fast data-integrity hashing and summaries for the bundled
datasets without requiring rmorie.
Arguments
- x
For
morie_core_sha256(), a length-1 character vector or a raw vector. Formorie_core_mean(), a numeric vector (coerced withas.numeric()); NA/NaN propagate.
Value
morie_core_sha256() returns a 64-character lowercase hex
digest. morie_core_mean() returns a length-1 numeric.
Examples
## ---- morie_core_sha256(): 64-char lowercase hex digest --------------
morie_core_sha256("abc") # hash a character scalar
#> [1] "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"
morie_core_sha256("") # the empty string still hashes
#> [1] "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
morie_core_sha256(charToRaw("abc")) # identical digest from raw bytes
#> [1] "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"
# character input and its raw-byte equivalent agree:
identical(morie_core_sha256("abc"), morie_core_sha256(charToRaw("abc")))
#> [1] TRUE
# Data-integrity pin: verify a value is byte-for-byte what you expect.
expected <- morie_core_sha256("record-42")
stopifnot(morie_core_sha256("record-42") == expected)
# Fingerprint a whole object by hashing its serialization.
morie_core_sha256(serialize(list(a = 1, b = "x"), NULL))
#> [1] "abf3149d8418cb5aff681febf06d66e362c42b3b4b1a3e196a1398aa08d60f4f"
## ---- morie_core_mean(): fast length-1 mean --------------------------
morie_core_mean(1:10) # 5.5
#> [1] 5.5
morie_core_mean(c(2, 4, 6)) # 4
#> [1] 4
morie_core_mean(c(-1, 0, 1)) # 0
#> [1] 0
morie_core_mean(c(1, 2, NA)) # NA propagates (no na.rm)
#> [1] NA
morie_core_mean(complaint_sample$year) # mean over a bundled column
#> [1] 2020