Parse special terms
Extract from a vector of character strings the names of special functions and auxiliary arguments
parseSpecialNames(x, special, arguments)
x |
Vector of character strings. |
special |
A character string: the name of the special argument. |
arguments |
A vector which contains the arguments of the special function |
Signals an error if an element has more arguments than specified by argument arguments.
A named list of parsed arguments. The names of the list are the special variable names, the elements are lists of arguments.
Thomas A. Gerds <tag@biostat.ku.dk>
model.design
## ignore arguments
parseSpecialNames("treat(Z)",special="treat")
## set default to 0
parseSpecialNames(c("log(Z)","a","log(B)"),special="log",arguments=list("base"=0))
## set default to 0
parseSpecialNames(c("log(Z,3)","a","log(B,base=1)"),special="log",arguments=list("base"=0))
## different combinations of order and names
parseSpecialNames(c("log(Z,3)","a","log(B,1)"),
special="log",
arguments=list("base"=0))
parseSpecialNames(c("log(Z,1,3)","a","log(B,u=3)"),
special="log",
arguments=list("base"=0,"u"=1))
parseSpecialNames(c("log(Z,u=1,base=3)","a","log(B,u=3)"),
special="log",
arguments=list("base"=0,"u"=1))
parseSpecialNames(c("log(Z,u=1,base=3)","a","log(B,base=8,u=3)"),
special="log",
arguments=list("base"=0,"u"=1))
parseSpecialNames("treat(Z,u=2)",
special="treat",
arguments=list("u"=1,"k"=1))
parseSpecialNames(c("treat(Z,1,u=2)","treat(B,u=2,k=3)"),
special="treat",
arguments=list("u"=NA,"k"=NULL))
## does not work to set default to NULL:
parseSpecialNames(c("treat(Z,1,u=2)","treat(B,u=2)"),
special="treat",
arguments=list("u"=NA,"k"=NULL))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.