lmfor (version 1.7)

linesplot: A spaghetti plot of grouped data

Description

Orders the observations by x and thereafter plots y on x and connects observations of the same group by lines. Useful, for example, to plot a longitudinal dataset.

Usage

linesplot(x, y, group, xlab = "x", ylab = "y", 
          main = "", cex = 0.5, pch = 19, col = 1, col.lin = 1, 
          lw = FALSE, ylim = NULL, xlim = NULL, add = FALSE, lty = "solid", lwd=1)

Value

Used for its side effects.

Arguments

x, y

Numerical vectors of the same length including the x and y variables.

group

The variable specifying the group. Should be of the same length as vectors x and y.

xlab, ylab, main, cex, pch, col, col.lin, xlim, ylim, lty, lwd

Graphical parameters, see par

lw

Boolean. Whether a loess smoother to be added onto the plot.

add

Boolean. Whether to add to an existing plot or to open a new window.

Author

Lauri Mehtatalo <>

Details

The observations within the group are connected at the increasing order of x.

References

Mehtatalo, Lauri and Lappi, Juha 2020. Biometry for Forestry and Environmental Data: with examples in R. New York: Chapman and Hall/CRC. 426 p. tools:::Rd_expr_doi("10.1201/9780429173462")

Examples

D<-rep(seq(10,30),10)
H<-(20+rep(rnorm(10,0,0.5),each=21))*exp(-1.5*D^(-1.3))
plot<-rep(1:10,each=21)
linesplot(D,H,plot)