TaoTeProgramming (version 1.0)

bendplot: Bend plots

Description

Random bend plots. Describing them is hard, seeing them is easy.

Usage

bendplot(num = 20000, xdelta = 0.1, ydelta = 0.2,  sd = 1, lwd = 2, color = "black", seed = NULL)
bendplotmultcol(num = 20000, xdelta = 0.1, ydelta = 0.2,  sd = 1, lwd = 2, color = colors(), cnum = 100, seed = NULL)
bend(num = 20000, xdelta = 100, ydelta = 200, sd = 1)

Arguments

num

number of data points

xdelta

horizontal scaling.

ydelta

vertical scaling

sd

standard deviation of normal deviates.

lwd

a single number giving the line width.

color

one or more colors.

seed

an integer giving the argument for set.seed.

cnum

an integer giving the number of colors to use.

Value

bend returns a two-column matrix.

Side effects

bendplot and bendplotmultcol create a plot on the current graphics device, and modify the random seed.

References

http://www.burns-stat.com/documents/books/tao-te-programming/

See Also

set.seed.

Examples

# one color
bendplot(xdelta=150, ydelta=150, 
    color=grep("green", colors(), value=TRUE), seed=2)
    
# multiple colors    
bendplotmultcol(xdelta=150, ydelta=150, 
    color=grep("green", colors(), value=TRUE), seed=2) 
    
bendplotmultcol(xdelta=100, ydelta=200, sd=.001, 
   color=grep("sienna", colors(), value=TRUE))