Nothing
if(FALSE) ##: This is not yet ready for prime time
## NOTE we have had p.res.2x(x,y,z, ...) forever in --> ./p.res.2x.WSt.R
## --- ~~~~~~~~~ ------- ~~~~~~~~~~~~~~~
p.res.2x.formula <- ## Change the name ; no 'lm'
## take graphics:::mosaicplot.formula() as example
function(formula = ~., data, restricted = NULL, size = 1,
slwd = 1, scol = 2,
xlab = NULL, ylab = NULL, xlim = NULL, ylim = NULL, ...)
{
## Purpose: plot residuals vs. two x's
## Author: ARu , Date: 11/Jun/91
## Aenderungen: MMae, 30/Jan/92, Dez.94 / WSt
## --------------------------------------------------------------------------
## Arguments:
## formula formula defining the variables zu be used, either
## z ~ x + y
## ~ x + y in this case, data must inherit from lm ,
## and the residuals of data will be used as z .
## data a data.frame or an lm or aov object.
## In the latter case, g.rex2x will look for the data
## that was used to fit the model.
## restricted absolute value which truncates the size.
## The corresponding symbols are marked by stars.
## size the symbols are scaled so that 'size' is the size of
## the largest symbol in cm.
## slwd, scol line width and color to be used for the symbols
## ... additional arguments for the S-function 'plot'
## EXAMPLE :
## g.res2x(zz~.,data=data.frame(xx=rep(1:10,7),yy=rep(1:7, rep(10,7)),
## zz=rnorm(70)), restr = 2, main = "i.i.d. N(0,1) random residuals")
## --------------------------------------------------------------------------
formula <- as.formula(formula)
if (inherits(data,"lm")) {
t.d <- get(as.character(data$call[3]))
if (length(formula) < 3) {
formula <- update.formula(formula,residuals~.)
t.d <- f.merge1(t.d,resid(data),namefrom = "residuals")
}
} else t.d <- data
if (!is.data.frame(t.d)) {
if(is.matrix(data)) data <- as.data.frame(data) else
stop("data is not a data frame or 'lm' object")
}
t.d <- na.omit(model.frame(formula, t.d))
z <- t.d[,1]
x <- as.numeric(t.d[,2])
y <- as.numeric(t.d[,3])
if(is.null(xlab)) xlab <- names(t.d)[2]
if(is.null(ylab)) ylab <- names(t.d)[3]
p.res.2x.numeric(x,y,z, restricted=restricted, size=size, slwd=slwd, scol=scol,
xlab=xlab, ylab=ylab, xlim=xlim, ylim=ylim, ...)
}
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