CatalogueAccessors {FrF2} | R Documentation |
Functions to select elements or extract information from design catalogues of class catlg
res.catlg(catlg) nruns.catlg(catlg) nfac.catlg(catlg) WLP.catlg(catlg) nfree.2fis.catlg(catlg) free.2fis.catlg(catlg) all.2fis.free.catlg(catlg) catlg ## S3 method for class 'catlg': catlg[i]
catlg |
Catalogue of designs of class catlg (cf. details section) |
i |
vector of index positions or logical vector that can be used for indexing a catlg object |
The class catlg
is a named list of design entries,
currently containing the Chen, Sun and Wu (1993) 2-level designs only
(complete list of 2-level fractional factorials up to 32~runs,
complete list of resolution IV 2-level fractional factorials with 64~runs).
Each design entry is again a list with the following items:
catlg
)
Reference to factors in components nfree.2fis
and all.2fis.free
is via their position number (element of (1:nfac)).
[
selects a subset of designs based on i
, which is again a list of class catlg
, even if a single element is selected.
res
, nruns
, nfac
and nfree.2fis
return a named vector,
the remaining functions return a list.
Ulrike Groemping
Chen, J., Sun, D.X. and Wu, C.F.J. (1993) A catalogue of 2-level and 3-level orthogonal arrays. Int. Statistical Review 61, 131-145.
See Also FrF2
c8 <- catlg[nruns.catlg(catlg)==8] nfree.2fis.catlg(c8) free.2fis.catlg(c8) all.2fis.free.catlg(c8)