On Aug 1, 2011, at 3:41 AM, Paola Lecca wrote:
Dear R users,
I'm trying to fit a set an ODE to an experimental time series. In the
attachment you find the R code I wrote using modFit and modCost of FME
package and the file of the time series.
This is getting a bit tiresome. None of the three duplicate such
messages have had successful attachment of any code. Why don't you
look at what got distributed to the list?
The rule I have developed is that I should assume that any file not
ending in .pdf or .txt will get scrubbed by the mail server. I realize
it is not an exact rule, but it keeps me from submitting files ending
in .r or .rdata because I know they will get scrubbed. For some reason
a recent rewrite of the Posting Guide appears to have left out this
information which my memory tells me used to be there last year.
--
David.
When I run summary(Fit) I obtain this error message, and the values
of the
parameters are equal to the initial guesses I gave to them.
The problem is not due to the fact that I have only one equation (I
tried
also with more equations, but I still obtain this error).
I would appreciate if someone could help me in understanding the
reason of
the error and in fixing it.
Thanks for your attention,
Paola Lecca.
Here the error:
summary(Fit)
Parameters:
Estimate Std. Error t value Pr(>|t|)
pro1_strength 1 NA NA NA
Residual standard error: 2.124 on 10 degrees of freedom
Error in cov2cor(x$cov.unscaled) : 'V' is not a square numeric matrix
In addition: Warning message:
In summary.modFit(Fit) : Cannot estimate covariance; system is
singular
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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--
*Paola Lecca, PhD*
*The Microsoft Research - University of Trento*
*Centre for Computational and Systems Biology*
*Piazza Manci 17 38123 Povo/Trento, Italy*
*Phome: +39 0461282843*
*Fax: +39 0461282814*
<wild_pp1_mrna.txt>______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
David Winsemius, MD
West Hartford, CT
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
