The nlrwr Package - NexTag Supports Open Source Initiatives

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10 confint2FormatDetailsSourceA data frame with 17 observations on the following 2 variables.x a numeric vector of shorter bond lengthsy a numeric vector of longer bond lengthsThe dataset is one out of two datasets containing measurements on asymmetric and symmetricatomic triples, respectively, from an experiment in structural chemistry.A non-linear regression model with mean functionf(x) = a + (b − a)( c + 1)(x − a) cwith parameters a,b,c (a translated generalised hyperbola model) appears to be appropriate.Hamilton, D. C. and Knop, O (1998) Combining non-linear regressions that have unequal errorvariances and some parameters in common, Appl. Statist., 47, 173–185.Examplesconfint2Confidence intervals in non-linear regressionDescriptionUsageProduces confidence intervals for the parameters in non-linear regression model fit. The intervalscan either be based large sample results or on profiling.Argumentsconfint2(object, parm, level = 0.95, method = c("asymptotic", "profile"), ...)objectparmlevelmethodobject of class nls.a vector character strings with names of the parameter for which to calculateconfidence intervals (by default all parameters).the confidence level required.method to be used: "asympotic" for large sample and "profile" for profilingapproach.... additional argument(s) to pass on the method doing the profiling.
exp1 11DetailsThe profiling used is the method confint.nls.ValueA matrix with columns giving lower and upper confidence limits for each parameter.Author(s)Christian RitzExamplesL.minor.m1
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The nlrwr Package - NexTag Supports Open Source Initiatives

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