xts C API Documentation

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Description

This help file is to help in development of xts, as well as provide some clarity and insight into its purpose and implementation.

Last modified: 2013-01-16 by Jeffrey A. Ryan and Dirk Eddelbuettel Version: 0.9-2 and above

At present the xts API has publically available interfaces to the following functions (as defined in xtsAPI.h:

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Callable from other R packages:
  SEXP xtsIsOrdered(SEXP x, SEXP increasing, SEXP strictly)
  SEXP xtsNaCheck(SEXP x, SEXP check)
  SEXP xtsTry(SEXP x)
  SEXP xtsRbind(SEXP x, SEXP y, SEXP dup)
  SEXP xtsCoredata(SEXP x)
  SEXP xtsLag(SEXP x, SEXP k, SEXP pad)

Internal use functions:
  int isXts(SEXP x)
  void copy_xtsAttributes(SEXP x, SEXP y)
  void copy_xtsCoreAttributes(SEXP x, SEXP y)

Internal use macros:
  xts_ATTRIB(x)
  xts_COREATTRIB(x)
  GET_xtsIndex(x)
  SET_xtsIndex(x,value)
  GET_xtsIndexClass(x)
  SET_xtsIndexClass(x,value)
  GET_xtsIndexFormat(x)
  SET_xtsIndexFormat(x,value)
  GET_xtsCLASS(x)
  SET_xtsCLASS(x,value)

Internal use SYMBOLS:
  xts_IndexSymbol
  xts_ClassSymbol
  xts_IndexFormatSymbol
  xts_IndexClassSymbol

Callable from R:
  SEXP mergeXts(SEXP args)
  SEXP rbindXts(SEXP args)
  SEXP tryXts(SEXP x)

Author(s)

Jeffrey A. Ryan

Examples

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## Not run: 
# some example code to look at

file.show(system.file('api_example/README', package="xts"))
file.show(system.file('api_example/src/checkOrder.c', package="xts"))

## End(Not run)

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