plot.support | R Documentation |
Methods to plot the normalized support index functions (Fruth et al., 2016).
## S3 method for class 'support'
plot(x, i = 1:ncol(x$X),
xprob = FALSE, p = NULL, p.arg = NULL,
ylim = NULL, col = 1:3, lty = 1:3, lwd = c(2,2,1), cex = 1, ...)
## S3 method for class 'support'
scatterplot(x, i = 1:ncol(x$X),
xprob = FALSE, p = NULL, p.arg = NULL,
cex = 1, cex.lab = 1, ...)
x |
an object of class support. |
i |
an optional vector of integers indicating the subset of input variables |
xprob |
an optional boolean indicating whether the inputs should be plotted in probability scale. |
p |
, |
p.arg |
list of probability names and parameters for the input distribution. |
ylim |
, |
col |
, |
lty |
, |
lwd |
, |
cex |
, |
cex.lab |
usual graphical parameters. |
... |
additional graphical parameters to be passed to |
If xprob = TRUE
, the input variable X_i
is plotted in probability scale according to the informations provided in the arguments p, p.arg
: The x-axis is thus F(x)
, where F
is the cdf of X_i
. If these ones are not provided, the empirical distribution is used for rescaling: The x-axis is thus Fn(x)
, where Fn
is the empirical cdf of X_i
.
Legend details:
zeta*T : normalized total support index function
zeta* : normalized 1st-order support index function
nu* : normalized DGSM
Notice that the sum of (normalized) DGSM (nu*) over all input variables is equal to 1. Furthermore, the expectation of the total support index function (zeta*T) is equal to the (normalized) DGSM (nu*).
O. Roustant
Estimation of support index functions: support
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