### Name: pdConstruct
### Title: Construct pdMat Objects
### Aliases: pdConstruct pdConstruct.pdCompSymm pdConstruct.pdDiag
###   pdConstruct.pdIdent pdConstruct.pdMat pdConstruct.pdNatural
###   pdConstruct.pdSymm pdConstruct.pdLogChol
### Keywords: models

### ** Examples

pd1 <- pdSymm()
pdConstruct(pd1, diag(1:4))