vector.vmode: Create vector of virtual mode

In OHDSI/ff: Memory-Efficient Storage of Large Data on Disk and Fast Access Functions

Description

vector.vmode creates a vector of a given vmode and length

Usage

vector.vmode(vmode = "logical", length = 0)
boolean(length = 0)
quad(length = 0)
nibble(length = 0)
byte(length = 0)
ubyte(length = 0)
short(length = 0)
ushort(length = 0)

Arguments

vmode	virtual mode
length	desired length

Details

Function vector.vmode creates the vector in one of the usual storage.modes (see .rammode) but flags them with an additional attribute 'vmode' if necessary. The creators can also be used directly:

boolean	1 bit logical without NA
logical	2 bit logical with NA
quad	2 bit unsigned integer without NA
nibble	4 bit unsigned integer without NA
byte	8 bit signed integer with NA
ubyte	8 bit unsigned integer without NA
short	16 bit signed integer with NA
ushort	16 bit unsigned integer without NA
integer	32 bit signed integer with NA
single	32 bit float
double	64 bit float
complex	2x64 bit float
raw	8 bit unsigned char
character	character

Value

a vector of the desired vmode initialized with 0

Author(s)

Jens Oehlschlägel

See Also

as.vmode, vector

Examples

  vector.vmode("byte",12)
  vector.vmode("double",12)
  byte(12)
  double(12)

OHDSI/ff documentation built on May 7, 2019, 8:30 p.m.