# R igraph manual pages

Use this if you are using igraph from R

 sample_seq {igraph} R Documentation

## Sampling a random integer sequence

### Description

This function provides a very efficient way to pull an integer random sample sequence from an integer interval.

### Usage

sample_seq(low, high, length)


### Arguments

 low The lower limit of the interval (inclusive). high The higher limit of the interval (inclusive). length The length of the sample.

### Details

The algorithm runs in O(length) expected time, even if high-low is big. It is much faster (but of course less general) than the builtin sample function of R.

### Value

An increasing numeric vector containing integers, the sample.

### Author(s)

Gabor Csardi csardi.gabor@gmail.com

### References

Jeffrey Scott Vitter: An Efficient Algorithm for Sequential Random Sampling, ACM Transactions on Mathematical Software, 13/1, 58–67.

### Examples


rs <- sample_seq(1, 100000000, 10)
rs



[Package igraph version 1.3.3 Index]