[R] readline() to vector

[Agustin Lobo]

Hi!

I'm trying to use readline() to ask for xlim() and ylim() values
for a subsequent plot. I'm doing:

lim <- readline("Enter xlim and ylim values: ")

then would like to use the values in lim for a plot:

plot(etc, xlim=lim[1:2],ylim=lim[3:4])

The problem is that lim is a character,i.e.,

"10,20,-10,50"
or 
"c(10,20,-10,50)"

depending on the input to the readline request.

My question is: how can I transform either "10,20,-10,50" or
"c(10,20,-10,50)" into a numeric vector ?

Thanks

Agus

Dr. Agustin Lobo
Instituto de Ciencias de la Tierra (CSIC)
Lluis Sole Sabaris s/n
08028 Barcelona SPAIN
tel 34 93409 5410
fax 34 93411 0012
alobo at ija.csic.es


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