rndseed—425

Cross-references

See “Recursive Least Squares” on page 586 of the User’s Guide.

Generate uniform random integers.

The rndint command fills series, vector, and matrix objects with (pseudo) random integers drawn uniformly from zero to a user specified maximum. The rndint command ignores the current sample and fills the entire object with random integers.

Syntax

Command: rndint(object_name, n)

Type the name of the series, vector, or matrix object to fill, followed by an integer value representing the maximum value n of the random integers. n should a positive integer.

Examples

series index

rndint(index,10)

fills the entire series INDEX with integers drawn randomly from 0 to 10. Note that unlike standard series assignment using genr, rndint ignores the current sample and fills the series for the entire workfile range.

sym(3) var3

rndint(var3,5)

fills the entire symmetric matrix VAR3 with random integers ranging from 0 to 5.

Cross-references

See the list of available random number generators in Appendix D, “Operator and Function Reference”, beginning on page 573.

See also nrnd (p. 569), rnd (p. 571) and rndseed (p. 425).

rndseed Command

Seed the random number generator.

Use rndseed when you wish to generate a repeatable sequence of random numbers, or to select the generator to be used.

rowvector—427

At press time, further information on the improved seeds may be found on the web at the following addresses:

Knuth generator: http://sunburn.stanford.edu/~knuth/news02.html#rng

Mersenne twister: http://www.math.keio.ac.jp/~matumoto/MT2002/emt19937ar.html

See also nrnd (p. 569), rnd (p. 571) and rndint (p. 425).

Declare a rowvector object.

The rowvector command declares and optionally initializes a (row) vector object.

Syntax

Command: rowvector(n1) vector_name

Command: rowvector vector_name=assignment

You may optionally specify the size (number of columns) of the row vector in parentheses after the rowvector keyword. If you do not specify the size, EViews creates a rowvector of size 1, unless the declaration is combined with an assignment.

By default, all elements of the vector are set to 0, unless an assignment statement is provided. EViews will automatically resize new rowvectors, if appropriate.

Examples

rowvector rvec1

rowvector(20) coefvec = 2

rowvector newcoef = coefvec

RVEC1 is a row vector of size one with value 0. COEFVEC is a row vector of size 20 with all elements equal to 2. NEWCOEF is also a row vector of size 20 with all elements equal to the same values as COEFVEC.

Cross-references

See “Rowvector” on page 174 for a complete description of the rowvector object.

See also coef (p. 243) and vector (p. 529).