R help - Feb 2008 - R ver 2.0.1 NA in Probability Vector Error Messages

Hello, 

   I am currently operating R version 2.0.1. I am running an analysis
that uses previously written fuctions that I load into R 2.0.1 via the
file menu (file-->load workspace). There are other colleagues on my team
that are operating the same version of R, using the same input datafile,
the same workspace, and the same R code to run this analysis. Their
analysis runs without any errors, yet mine does does not. The analysis
that we are running attempts to create a  sample of individuals that
meets certain compositional demographic criteria. To achieve this we ask
R to run though up to 10,000 iterations before producing a sample that
BEST (i.e., with the smallest rate of error) conforms to the proportions
of these demographic characteristics that we specify. When I run this
analysis, R produces an output file that results from fewer interations
with higher error rates than what my colleagues have achieved when
running the same exact code on the same exact data. The error message
that populates my R output window is as follows: "Error in
sample(length(x), size, replace, prob) : NA in probability vector". I do
not understand why I receive this error message, whereas my colleages do
not. Any guidance/advice would we extremely helpful!

Thank You!
Gabriella Delle Donne





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Gabriella,

First of all I would suggest that you upgrade to a recent R version
(2.6.2).

Without a reprodicible example of your code it is very hard to examine
the problem. Use traceback() to identify were the problem occurs in your
code. 

HTH,

Thierry

------------------------------------------------------------------------
----
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature
and Forest
Cel biometrie, methodologie en kwaliteitszorg / Section biometrics,
methodology and quality assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium 
tel. + 32 54/436 185
Thierry.Onkelinx op inbo.be 
www.inbo.be 

Do not put your faith in what statistics say until you have carefully
considered what they do not say.  ~William W. Watt
A statistical analysis, properly conducted, is a delicate dissection of
uncertainties, a surgery of suppositions. ~M.J.Moroney

-----Oorspronkelijk bericht-----
Van: r-help-bounces op r-project.org [mailto:r-help-bounces op r-project.org]
Namens Delle Donne, Gabriella
Verzonden: vrijdag 8 februari 2008 20:41
Aan: r-help op r-project.org
Onderwerp: [R] R ver 2.0.1 NA in Probability Vector Error Messages

Hello, 

   I am currently operating R version 2.0.1. I am running an analysis
that uses previously written fuctions that I load into R 2.0.1 via the
file menu (file-->load workspace). There are other colleagues on my team
that are operating the same version of R, using the same input datafile,
the same workspace, and the same R code to run this analysis. Their
analysis runs without any errors, yet mine does does not. The analysis
that we are running attempts to create a  sample of individuals that
meets certain compositional demographic criteria. To achieve this we ask
R to run though up to 10,000 iterations before producing a sample that
BEST (i.e., with the smallest rate of error) conforms to the proportions
of these demographic characteristics that we specify. When I run this
analysis, R produces an output file that results from fewer interations
with higher error rates than what my colleagues have achieved when
running the same exact code on the same exact data. The error message
that populates my R output window is as follows: "Error in
sample(length(x), size, replace, prob) : NA in probability vector". I do
not understand why I receive this error message, whereas my colleages do
not. Any guidance/advice would we extremely helpful!

Thank You!
Gabriella Delle Donne





	[[alternative HTML version deleted]]

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