Panelplot for itermplot
An example of a useful panel function for huge datasets
ipanel.smooth(x, y = NULL, pixs = 1, zmax = NULL,
ztransf = function(x) {x},
colramp = IDPcolorRamp, col = "black", lwd = 2,
span = 2/3, iter = 3, ...)x,y |
Numeric vectors of the same length. |
pixs |
Size of pixel in x- and y-direction in [mm] on the plotting device. When x and y are numeric, pixels are square. When x and y are factors, pixels are no longer square. The pixels are enlarged in x-direction. |
zmax |
Maximum number of counts per Pixel in the plot. When NULL, the density in the scatter plot is encoded from 0 pixel to maximum number of counts observed. zmax must be equal or larger than maximum number of counts found. |
ztransf |
Function to transform the number of counts per pixel,
which will be mapped by the function in |
colramp |
Color ramp to encode the number of counts within a pixel by color. |
col,lwd |
Color and line width of the “smoothed curve”. |
span |
the smoother span. This gives the proportion of points in the plot which influence the smooth at each value. Larger values give more smoothness. |
iter |
The number of robustifying iterations which should be performed. Using smaller values of iter will make lowess run faster. |
... |
Other graphical parameters as arguments to the
|
Rene Locher
r.lm <- lm(Sepal.Length~Sepal.Width+Petal.Length+Petal.Width+Species,
data = iris)
par(mfrow = c(2,2), pty = "s")
itermplot(r.lm, se = TRUE, partial.res = TRUE, smooth = ipanel.smooth,
lwd.smth = 3, pixs = 2, ask = FALSE)
if (require(SwissAir)) {
par(mfrow = c(1,1))
dat <- log(AirQual[,c("ad.O3", "ad.WS")])
pairs(dat,
panel = ipanel.smooth)
} else print("Package SwissAir is not available")Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.