bit (version 4.6.0)

physical.default: Physical and virtual attributes

Description

Compatibility functions (to package ff) for getting and setting physical and virtual attributes.

Usage

# S3 method for default
physical(x)
# S3 method for default
physical(x) <- value
# S3 method for default
virtual(x)
# S3 method for default
virtual(x) <- value
# S3 method for physical
print(x, ...)
# S3 method for virtual
print(x, ...)
physical(x)
physical(x) <- value
virtual(x)
virtual(x) <- value

Value

physical and virtual returns a list with named elements

Arguments

x

a ff or ram object

value

a list with named elements

...

further arguments

Author

Jens Oehlschlägel

Details

ff objects have physical and virtual attributes, which have different copying semantics: physical attributes are shared between copies of ff objects while virtual attributes might differ between copies. ff::as.ram() will retain some physical and virtual atrributes in the ram clone, such that ff::as.ff() can restore an ff object with the same attributes.

See Also

ff::physical.ff(), ff::physical.ffdf()

Examples

  physical(bit(12))
  virtual(bit(12))