Description Objects from the Class Slots Methods References See Also Examples
Container of the results of PCE sensitivity indexes computation.
Objects from this class are created by calls to function PCESI
.
indexes
:matrix with as many rows as inputs and 3 columns. Values of the PCE sensitivity indexes. The row labels are the inputs numbers. The column labels are LE, PE, TPE.
indexes[i, "LE"]
is the Linear Effect of the input i
.
indexes[i, "PE"]
is the Polynomial Effect
(called "SU" in Sudret, 2008). It is the effect of the
monomials in which only the input i
appears.
indexes[i, "TPE"]
is the Total Polynomial Effect
(often called "SUT"). It is the effect of all the
monomials in which the input i
appears.
indexes.percent
:matrix.
Percentages of the PCE sensitivity indexes, i.e
values of indexes
expressed as percentages
of the sums of their columns.
fit
:vector of length 2. The values of R2 and RMSEP (RMSEP: Root Mean Square Error Prediction).
IMSI
:vector of length equal to the number of monomials. Individual monomial sensitivity indexes.
coef
:vector of length equal to the number of monomials plus one. Regression coefficients. The first one is the constant term.
y.hat
:vector of length equal to the number of rows of the dataset. Metamodel outputs.
design
:object of class PCEdesign
. Matrix
coding the polynomial structure.
call.PCEpoly
:expression of class ‘call’. The command
which creates the PCEpoly
object
used as input in the creator command.
signature(object = "PCEfit")
: display the names, class and
length of all the components. See the description
of the generic function
getNames
.
signature(object = "PCEfit", all=FALSE, ...)
:
method of function print
. When
option all
is set to FALSE (the default),
only the components indexes
, indexes.percent
and
fit
are printed.
The additional arguments are passed to the
print.default
function.
signature(object = "PCEfit")
: same as
function print
, without any arguments.
Global sensitivity analysis using polynomial chaos expansions. Bruno Sudret. In Reliability Engineering and System Safety, Vol. 93, Issue 7, July 2008, pages 964979.
Function PCESI
, creator of objects from this class.
1  showClass("PCEfit")

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