src/data/dataframe-xarray.lisp

   1 ;;; -*- mode: lisp -*-
   2
   3 ;;; Time-stamp: <2009-06-23 08:02:51 tony>
   4 ;;; Creation:   <2009-06-22 17:09:47 tony>
   5 ;;; File:       dataframe-xarray.lisp
   6 ;;; Author:     AJ Rossini <blindglobe@gmail.com>
   7 ;;; Copyright:  (c)2009--, AJ Rossini.  BSD, LLGPL, or GPLv2, depending
   8 ;;;             on how it arrives.
   9 ;;; Purpose:    Integration of xarray tools with dataframe-like
  10 ;;;             objects.
  11
  12 ;;; What is this talk of 'release'? Klingons do not make software
  13 ;;; 'releases'.  Our software 'escapes', leaving a bloody trail of
  14 ;;; designers and quality assurance people in its wake.
  15
  16 ;;; Tamas Papp's xarray package is his 2nd generation generic array
  17 ;;; indexing package, coming after the ideas and thoughts behind his
  18 ;;; affi package, which while novel, is somewhat obsolete.
  19
  20
  21 (defmethod xref ((obj data-frame-like)  &rest indices)
  22   (apply #'dfref obj indices))
  23
  24 (defmethod (setf xref) (value (object array) &rest subscripts)
  25   (setf (apply #'dfref object subscripts) value))
  26
  27 (defmethod xref ((obj matrix-like)  &rest indices))
  28
  29 (defmethod xtype ((obj dataframe-like)))
  30
  31 (defmethod xdims ())
  32
  33 (defmethod xdims* ())
  34
  35 (defmethod xdim ((obj dataframe-like) index)
  36   (dataframe-dimension index))
  37
  38 (defmethod xrank ())
  39
  40 (defmethod slice ())
  41
  42 (defmethod take ())
  43
  44   (defmethod carray ())