[R] warnings on adapt

lmpalaci at ucalgary.ca lmpalaci at ucalgary.ca
Wed Mar 28 19:47:03 CEST 2007


Hi all

I was wondering if someone could help me.

I have to estimate some parameters, so I am using the function nlm. Inside
this function I have to integrate, hence
I am using the function adapt.
I don't understand why it is giving the following warnings:

At the beginning:

Warning: a final empty element has been omitted
the part of the args list of 'c' being evaluated was:
   (paste("Ifail=2, lenwrk was too small. -- fix adapt() !\n", "Check the
returned relerr!"), "Ifail=3: ndim > 20 -- rewrite the fortran code ;-)
!", "Ifail=4, minpts > maxpts; should not happen!", "Ifail=5, internal
non-convergence; should not happen!", )

When it finishes:

Warning messages:
1: Ifail=2, lenwrk was too small. -- fix adapt() !
 Check the returned relerr! in: adapt(ndim = 1 + numcycles, lower =
rep(lowlim.int, (numcycles +
2: NA/Inf replaced by maximum positive value

Some people already asked similar questions but couldn't find the answer.

Thanks in advance

Luz

PS: When using the function adapt only (not within nlm) it gives no warnings.



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