as.logical.bit {bit} | R Documentation |
Coercing from bit to logical, integer, which.
## S3 method for class 'bit' as.logical(x, ...) ## S3 method for class 'bitwhich' as.logical(x, ...) ## S3 method for class 'ri' as.logical(x, ...) ## S3 method for class 'bit' as.integer(x, ...) ## S3 method for class 'bitwhich' as.integer(x, ...) ## S3 method for class 'ri' as.integer(x, ...) ## S3 method for class 'bit' as.double(x, ...) ## S3 method for class 'bitwhich' as.double(x, ...) ## S3 method for class 'ri' as.double(x, ...)
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Coercion from bit is quite fast because we use a double loop that fixes each word in a processor register.
as.logical
returns a vector of FALSE, TRUE
, as.integer
and as.double
return a vector of 0,1
.
Jens Oehlschlägel
as.bit
, as.which
, as.bitwhich
, as.ff
, as.hi
x <- ri(2, 5, 10) y <- as.logical(x) y stopifnot(identical(y, as.logical(as.bit(x)))) stopifnot(identical(y, as.logical(as.bitwhich(x)))) y <- as.integer(x) y stopifnot(identical(y, as.integer(as.logical(x)))) stopifnot(identical(y, as.integer(as.bit(x)))) stopifnot(identical(y, as.integer(as.bitwhich(x)))) y <- as.double(x) y stopifnot(identical(y, as.double(as.logical(x)))) stopifnot(identical(y, as.double(as.bit(x)))) stopifnot(identical(y, as.double(as.bitwhich(x))))