In general, "singular convergence" means you were trying to estimate
k parameters when the data would support estimation k-1 or fewer.
Beyond this, RSiteSearch("singlular convergence") produce 53 hits
for
me just now, and RSiteSearch("lme singular convergence") produced 7.
If
none of those answer your question and you would still like help from
this listserve, please submit a terse, reproducible example consistent
with "www.R-project.org/posting-guide.html". You can increase your
chances of getting a useful reply by making it easier for potential
respondents to comment. With a simple, terse, reproducible example,
anyone interested in "lme" can copy your code into R and see your
error
message in seconds. With a slightly greater effort, they might be able
to tell you exactly what you want to know. Without such a simple,
reproducible example, you are throwing darts blindly, hoping one will
find the bulls-eye of a target you only hope is there.
hope this helps.
spencer graves
Chia, Yen Lin wrote:
> Hi all,
>
>
>
> I just wonder what singular convergence means. Thanks.
>
>
>
> Yen Lin
>
>
>
> Error in lme.formula(Data ~ 1, random = ~1 | Wafer/fie/loc, subset >
Wafer == :
>
> singular convergence (7)
>
>
> [[alternative HTML version deleted]]
>
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