Description Usage Arguments Details Value Note Author(s) See Also Examples
Coercing to bit vector
1 2 3 4 5 6 7 8 9 10 11 12 13 | as.bit(x, ...)
## S3 method for class 'bit'
as.bit(x, ...)
## S3 method for class 'logical'
as.bit(x, ...)
## S3 method for class 'integer'
as.bit(x, ...)
## S3 method for class 'bitwhich'
as.bit(x, ...)
## S3 method for class 'which'
as.bit(x, length, ...)
## S3 method for class 'ri'
as.bit(x, ...)
|
x |
an object of class |
length |
the length of the new bit vector |
... |
further arguments |
Coercing to bit is quite fast because we use a double loop that fixes each word in a processor register
is.bit
returns FALSE or TRUE, as.bit
returns a vector of class 'bit'
Zero is coerced to FALSE, all other numbers including NA are coerced to TRUE. This differs from the NA-to-FALSE coercion in package ff and may change in the future.
Jens Oehlschl?gel
1 2 3 |
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