Class "PLSPCE"
Description
An S4 class container for the result of the function
calcPLSPCE
.
Slots
indexes
:matrix with as many rows as inputs and three columns. Values of the PLSPCE sensitivity indexes. The column labels are LE, PE, TPE.

indexes[i, "LE"]
is the Linear Effect of the inputi
. 
indexes[i, "PE"]
is the Polynomial Effect. It is the effect of the monomials in which only the inputi
appears. 
indexes[i, "TPE"]
is the Total Polynomial Effect. It is the effect of all the monomials in which the inputi
appears.

indexes.percent
:matrix. Percentages of the PLSPCE sensitivity indexes, i.e values of
indexes
expressed as percentages of the sums of their columns.ncopt
:number of the optimal component.
R2
:matrix with as many rows as components and three columns. The columns are labeled R2, %R2 and %R2cum. They store respectively the R2 values, percentages of their column sums, and cumulated values of their percentages.
Q2
:matrix with as many rows as components and two columns. The columns are labeled Q2 and Q2cum. They store respectively the Q2 and the Q2cum values.
rmsep
:matrix with as many rows as components and one column. Root mean square error predictions.
COEF
:matrix with as many rows as monomials plus one and as many columns as components. PLSregression coefficients. The first row is the constant term.
betaCR
:matrix with as many rows as monomials and as many columns as components. The centeredreducted PLSregression coefficients, for all the components.
y.hat
:vector of length equal to the number of rows of the dataset. Metamodel outputs.
STRUC
:object of class
PCEdesign
coding the polynomial structure.
Methods
signature(x = "PLSPCE", all=FALSE, ...)
: method of functionprint
. When optionall
is FALSE, some slots are hidden :RMSEP, coef, betaCR, y.hat, STRUC
. When optionall
is set to TRUE, the names of the hidden slots are printed. The additional arguments are passed to theprint.default
function. show
signature(object = "PLSPCE")
: same as functionprint
, without any arguments. plot
signature(x = "PLSPCE", pce, options =c("fit", "bar", "compo"))
: method of functionplot
. Different plots are drawn, according tooptions
. When it includes “fit”, computer model outputs against metamodel outputs. When it includes “bar”, barplots of the polynomial and total polynomial effects (PE and TPE). When it includes “compo”, TPE against components. This last plot requires the calculation of the TPE for each component, which may take some time.
Note
The COEF
and STRUC
slots can be used for making
predictions
for Legendrecoded new input values.
See Also
Function calcPLSPCE
, creator of objects from this
class.