David Kahle

David Kahle

9 packages on CRAN

chi

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Light weight implementation of the standard distribution functions for the chi distribution, wrapping those for the chi-squared distribution in the stats package.

58th

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Functions to create confidence intervals for ratios of Poisson rates under misclassification using double sampling.

TITAN2

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Uses indicator species scores across binary partitions of a sample set to detect congruence in taxon-specific changes of abundance and occurrence frequency along an environmental gradient as evidence of an ecological community threshold. Relevant references include: Baker, ME and RS King. 2010. A new method for detecting and interpreting biodiversity and ecological community thresholds. Methods in Ecology and Evolution 1(1): 25:37. King, RS and ME Baker. 2010. Considerations for identifying and interpreting ecological community thresholds. Journal of the North American Benthological Association 29(3):998-1008. Baker ME and RS King. 2013. Of TITAN and straw men: an appeal for greater understanding of community data. Freshwater Science 32(2):489-506.

m2r

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Persistent interface to Macaulay2 (<http://www.math.uiuc.edu/Macaulay2/>) and front-end tools facilitating its use in the R ecosystem.

algstat

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algstat provides functionality for algebraic statistics in R. Current applications include exact inference in log-linear models for contingency table data, analysis of ranked and partially ranked data, and general purpose tools for multivariate polynomials, building on the mpoly package. To aid in the process, algstat has ports to Macaulay2, Bertini, LattE-integrale and 4ti2.

ggmap

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A collection of functions to visualize spatial data and models on top of static maps from various online sources (e.g Google Maps and Stamen Maps). It includes tools common to those tasks, including functions for geolocation and routing.

invgamma

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Light weight implementation of the standard distribution functions for the inverse gamma distribution, wrapping those for the gamma distribution in the stats package.

latte

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Back-end connections to 'LattE' (<https://www.math.ucdavis.edu/~latte>) for counting lattice points and integration inside convex polytopes and '4ti2' (<http://www.4ti2.de/>) for algebraic, geometric, and combinatorial problems on linear spaces and front-end tools facilitating their use in the 'R' ecosystem.

mpoly

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Symbolic computing with multivariate polynomials in R.