User’s Guide to ADMB2R: A Set of AD Model Builder Output Routines Compatible with the R Statistics Language

Martin, Jennifer L. and Prager, Michael H. and Stephens, Andi (eds.) (2006) User’s Guide to ADMB2R: A Set of AD Model Builder Output Routines Compatible with the R Statistics Language. Miami, FL, NOAA/National Marine Fisheries Service/Southeast FisheriesScience Center, (NOAA Technical Memorandum NMFS–SEFSC, 546)

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Abstract

ADMB2R is a collection of AD Model Builder routines for saving complex data structures into a file that can be read in the R statistics environment with a single command.1 ADMB2R provides both the means to transfer data structures significantly more complex than simple tables, and an archive mechanism to store data for future reference. We developed this software because we write and run computationally intensive numerical models in Fortran, C++, and AD Model Builder. We then analyse results with R. We desired to automate data transfer to speed diagnostics during working-group meetings. We thus developed the ADMB2R interface to write an R data object (of type list) to a plain-text file. The master list can contain any number of matrices, values, dataframes, vectors or lists, all of which can be read into R with a single call to the dget function. This allows easy transfer of structured data from compiled models to R. Having the capacity to transfer model data, metadata, and results has sharply reduced the time spent on diagnostics, and at the same time, our diagnostic capabilities have improved tremendously. The simplicity of this interface and the capabilities of R have enabled us to automate graph and table creation for formal reports. Finally, the persistent storage in files makes it easier to treat model results in analyses or meta-analyses devised months—or even years—later. We offer ADMB2R to others in the hope that they will find it useful. (PDF contains 30 pages)

Item Type: Monograph or Serial Issue
Title: User’s Guide to ADMB2R: A Set of AD Model Builder Output Routines Compatible with the R Statistics Language
Editors:
EditorsEmail
Martin, Jennifer L.
Prager, Michael H.Mike.Prager@noaa.gov
Stephens, Andi
Series Name: NOAA Technical Memorandum NMFS–SEFSC
Number: 546
Date: 2006
Publisher: NOAA/National Marine Fisheries Service/Southeast FisheriesScience Center
Place of Publication: Miami, FL
Issuing Agency: United States National Marine Fisheries Service
Additional Information: Software Version 1
Subjects: Education
Item ID: 2108
Depositing User: Patti M. Marraro
Date Deposited: 19 May 2009 19:06
Last Modified: 29 Sep 2011 19:39
URI: http://aquaticcommons.org/id/eprint/2108

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