User’s Guide to C2R: A Set of C Language Output Routines Compatible with the R Statistics Language

Stephens, Andi and Prager, Michael H. and Martin, Jennifer L. (2006) User’s Guide to C2R: A Set of C Language Output Routines Compatible with the R Statistics Language. Miami, FL, NOAA/National Marine Fisheries Service/Southeast Fisheries Science Center, (NOAA Technical Memorandum NMFS–SEFSC, 547)

[img]
Preview
PDF (The document's language is English .) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (149Kb) | Preview

Abstract

C2R is a collection of C routines for saving complex data structures into a file that can be read in the R statistics environment with a single command.1 C2R 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 C2R 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 C2R to others in the hope that they will find it useful. (PDF contains 27 pages)

Item Type: Monograph or Serial Issue
Title: User’s Guide to C2R: A Set of C Language Output Routines Compatible with the R Statistics Language
Personal Creator/Author:
CreatorsEmail
Stephens, Andi
Prager, Michael H.Mike.Prager@noaa.gov
Martin, Jennifer L.
Series Name: NOAA Technical Memorandum NMFS–SEFSC
Number: 547
Date: 2006
Publisher: NOAA/National Marine Fisheries Service/Southeast Fisheries Science Center
Place of Publication: Miami, FL
Additional Information: Software Version 1.00
Subjects: Management
Education
Item ID: 2109
Depositing User: Patti M. Marraro
Date Deposited: 19 May 2009 19:09
Last Modified: 29 Sep 2011 19:39
URI: http://aquaticcommons.org/id/eprint/2109

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...