memisc (version 0.99.22)

as.symbols: Construction of Lists of Symbols

Description

as.symbols and syms are functions potentially useful in connection with foreach and xapply. as.symbols produces a list of symbols from a character vector, while syms returns a list of symbols from symbols given as arguments, but it can be used to construct patterns of symbols.

Usage

as.symbols(x)
syms(…,paste=FALSE,sep="")

Arguments

x

a character vector

…

character strings or (unquoted) variable names

paste

logical value; should the character strings pasted into one string?

sep

a separator string, passed to paste.

Value

A list of language symbols (results of as.symbol - not graphical symbols!).

Examples

# NOT RUN {
  as.symbols(letters[1:8])
  syms("a",1:3,paste=TRUE)

  sapply(syms("a",1:3,paste=TRUE),typeof)
# }