sample.system: Demonstration for the systematic sampling

In yihui/animation: A Gallery of Animations in Statistics and Utilities to Create Animations

Demonstration for the systematic sampling

Description

The whole sample frame is denoted by a matrix (nrow * ncol) in the plane, and the sample points with equal intervals are drawn out according to a random starting point. The points being sampled are marked by red circles.

Usage

sample.system(
  nrow = 10,
  ncol = 10,
  size = 15,
  p.col = c("blue", "red"),
  p.cex = c(1, 3)
)

Arguments

nrow	the desired number of rows of the sample frame.
ncol	the desired number of columns of the sample frame.
size	the sample size.
p.col, p.cex	different colors / magnification rate to annotate the population and the sample

Value

None (invisible NULL).

Author(s)

Yihui Xie

References

Examples at https://yihui.org/animation/example/sample-system/

See Also

sample, sample.simple, sample.cluster, sample.ratio, sample.strat

yihui/animation documentation built on March 27, 2023, 2:50 p.m.