examples/00-loadingData.lisp

   1 ;;; -*- mode: lisp -*-
   2
   3 ;;; Time-stamp: <2010-02-10 09:01:38 tony>
   4 ;;; Creation:   <2009-03-12 17:14:56 tony>
   5 ;;; File:       template.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:    Template header file
  10
  11 ;;; What is this talk of 'release'? Klingons do not make software
  12 ;;; 'releases'.  Our software 'escapes', leaving a bloody trail of
  13 ;;; designers and quality assurance people in its wake.
  14
  15
  16 (in-package :cl-user)
  17
  18 (cl:defpackage :cls-examples  ;; similar setup to cls-user, without test data
  19   (:use :common-lisp
  20         :lisp-matrix
  21         :common-lisp-statistics)
  22   (:shadowing-import-from :lisp-stat
  23       call-method call-next-method
  24
  25       expt + - * / ** mod rem abs 1+ 1- log exp sqrt sin cos tan
  26       asin acos atan sinh cosh tanh asinh acosh atanh float random
  27       truncate floor ceiling round minusp zerop plusp evenp oddp
  28       < <= = /= >= > > ;; complex
  29       conjugate realpart imagpart phase
  30       min max logand logior logxor lognot ffloor fceiling
  31       ftruncate fround signum cis
  32
  33       <= float imagpart)
  34   (:export localized-pathto
  35            *chkwgts-df*))
  36
  37 ;; start within the cls-examples package, which is similar to cls-user
  38 (in-package :cls-examples)
  39
  40 ;; we'll be loading from directories in the CLS homedir, so we want to
  41 ;; make it easier to reach.
  42 (defun localized-pathto (x)
  43   "return a string denoting the complete path.
  44 FIXME: UNIX-centric (though might work on Mac OSX).  Might want to
  45 return a pathspec, not a string/namespec"
  46   (check-type x string)
  47   (concatenate 'string *cls-home-dir* x))
  48
  49
  50
  51 (progn
  52   ;; LISP-STAT COMPATIBILITY MODE:
  53   ;;
  54   ;; FIXME: Need to clean up data examples, licenses, attributions, etc.
  55   ;; The following breaks because we should use a package to hold
  56   ;; configuration details, and this would be the only package outside
  57   ;; of packages.lisp, as it holds the overall defsystem structure.
  58   (load-data "iris.lsp")  ;; (the above partially fixed).
  59   diabetes
  60   (variables))
  61
  62 (progn
  63   ;; COMMON LISP STATISTICS
  64   ;; Importing data from DSV text files.
  65
  66 #| We use as an example a simple R datasert, chickwts, which has one
  67    nominal categorical variable and one continuous categorical
  68    variable.   This dataset can be accessed in R as follows:
  69
  70 > data(chickwts)
  71 > dim(chickwts)
  72 [1] 71  2
  73 > summary(chickwts)
  74      weight             feed
  75  Min.   :108.0   casein   :12
  76  1st Qu.:204.5   horsebean:10
  77  Median :258.0   linseed  :12
  78  Mean   :261.3   meatmeal :11
  79  3rd Qu.:323.5   soybean  :14
  80  Max.   :423.0   sunflower:12
  81 >
  82 |#
  83
  84   (defparameter *chickwts-df* (filename.dsv->dataframe (localized-pathto "Data/R-chickwts.csv")))
  85   ;; *chickwts-df*
  86   (xref *chickwts-df* 1 1) ; => 160
  87   (xref *chickwts-df* 40 2) ; => "sunflower"
  88   *chickwts-df*)