[EMAIL PROTECTED] wrote:

HI, sorry but i don't understand how to make a function with as.function()

formula<-"2+3*x"
 formu<-as.symbol(formula)

formu

2+3*x formul<-as.function(alist(x=,formu)) curve(formul,1,5,col="blue") Error in xy.coords(x, y, xlabel, ylabel, log) : x and y lengths differ

typeof(formul)

[1] "closure"

and not plot the curve function, Why? Thanks Ruben


Hi Ruben, How about this?

ftext <- "2 + 3 * x"
f <- as.function(alist(x=, eval(parse(text = ftext))))

or as a one-liner:

f <- as.function(alist(x=, eval(parse(text = "2 + 3 * x"))))

--sundar

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