Geting names of variables
I don't quite understand what you doing but have you
looked at ?names ?
x1 <- 3
x2 <- 5
y <- -34.5
mylist <- list(x1,x2,y)
mynames <- c("First Trade Position", "Second Trade
Position", "P&L")
names(mylist) <- mynames
mylist
--- Fernando Saldanha <fsaldan1 at gmail.com> wrote:
I wanted to create a list with the names of
variables and their
values. So I wrote the following function.
add.to.list.names.vars.1 <- function(lnv, vnv) {
i <- 1
while (i < length(vnv)) {
z <-
as.character(eval(substitute(quote(vnv[i+1])))[[2]][[i
+ 2]])
lnv[[vnv[i]]] <- list(Name = z, Value =
vnv[i+1])
i <- i + 2
}
lnv
}
It works, but it is very cumbersome. I wonder if
there is a smarter
way to do it. Here is an example:
my.list <- list() x1 <- 3 x2 <- 5 y <- -34.5 my.list <- add.to.list.names.vars.1(my.list,
c("First Trade Position", x1, "Second Trade
Position", x2, "P&L", y))
my.list
$`First Trade Position` $`First Trade Position`$Name [1] "x1" $`First Trade Position`$Value [1] "3" $`Second Trade Position` $`Second Trade Position`$Name [1] "x2" $`Second Trade Position`$Value [1] "5" $`P&L` $`P&L`$Name [1] "y" $`P&L`$Value [1] "-34.5"
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