lava (version 1.4.1)

spaghetti: Spaghetti plot

Description

Spaghetti plot for longitudinal data

Usage

spaghetti(formula, data, id, type = "l", lty = 1, col = Col(1),
  trend = FALSE, trend.col = "darkblue", trend.alpha = 0.2,
  trend.lwd = 3, xlab = "Time", ylab = "", ...)

Arguments

formula

Formula (response ~ time)

data

data.frame

id

Id variable

type

Type (line 'l', stair 's', ...)

lty

Line type

col

Colour

trend

Add trend line

trend.col

Colour of trend line

trend.alpha

Transparency

trend.lwd

Trend line width

xlab

Label of X-axis

ylab

Label of Y-axis

...

Additional arguments to lower level arguments

Examples

if (interactive() & require(mets)) {
K <- 5
y <- "y"%++%seq(K)
m <- lvm()
regression(m,y=y,x=~u) <- 1
regression(m,y=y,x=~s) <- seq(K)-1
regression(m,y=y,x=~x) <- "b"
d <- sim(m,500)
dd <- fast.reshape(d);
dd$num <- dd$num+rnorm(nrow(dd),sd=0.5) ## Unbalance
spaghetti(y~num,dd,id="id",lty=1,col=Col(1,.4),trend=TRUE,trend.col="darkblue")
}