plotModel | R Documentation |
A (filled) contour or perspective plot of a fitted model.
plotModel( object, which = if (ncol(object$x) > 1 & tolower(type) != "singledim") { 1:2 } else { 1 }, constant = object$x[which.min(object$y), ], xlab = paste("x", which, sep = ""), ylab = "y", type = "filled.contour", ... )
object |
fit created by a modeling function, e.g., |
which |
a vector with two elements, each an integer giving the two independent variables of the plot (the integers are indices of the respective data set). |
constant |
a numeric vector that states for each variable a constant value that it will take on
if it is not varied in the plot. This affects the parameters not selected by the |
xlab |
a vector of characters, giving the labels for each of the two independent variables. |
ylab |
character, the value of the dependent variable predicted by the corresponding model. |
type |
string describing the type of the plot: |
... |
additional parameters passed to the |
plotFunction
, plotData
## generate random test data testfun <- function (x) sum(x^2) set.seed(1) k <- 30 x <- cbind(runif(k)*15-5,runif(k)*15,runif(k)*2-7,runif(k)*5+22) y <- as.matrix(apply(x,1,testfun)) fit <- buildLM(x,y) plotModel(fit) plotModel(fit,type="contour") plotModel(fit,type="persp") plotModel(fit,which=c(1,4)) plotModel(fit,which=2:3)
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