[R] boot package
Nathan Leon Pace, MD, MStat
n.l.pace at utah.edu
Sun Dec 5 02:37:43 CET 2004
I using the boot package 1.2-20 on R 2.0.1.
My statistics function estimates 6 parameters.
In a small percentage of resampled data sets my statistics function
doesn't produce an estimate for one parameter and the boot function
stops with an error.
I can write an ifelse(exists('parameter.estimate'), parameter.estimate,
NA) statement within the statistic function to substitute an NA for the
missing estimate value.
However, the boot.ci function to generate CIs from the boot object
won't accept NAs.
My problem is writing code to impute a numeric value for the missing
estimate. ifelse won't generate a numeric value if the test is mode
Nathan Leon Pace, MD, MStat Work:n.l.pace at utah.edu
Department of Anesthesiology Home:nlpaces at comcast.net
University of Utah Work:801.581.6393
Salt Lake City, Utah Home:801.467.2925
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