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2005 Feb 24
2
a question about function eval()
Hi,
I have a question about the usage of eval(). Wonder if any experienced user can help me out of it.
I use eval() in the following function:
semireg.pwl <- function(coef.s=rnorm(1),coef.a=rnorm(1),knots.pos=knots.x,knots.ini.val=knots.val){
knotn <- length(knots.pos)
def.par.env <- sys.frame(1)
print(def.par.env)
print(environment(coef.s))
tg <- eval( (parse(text=