examples/00-loadingData.lisp

   1 ;;; -*- mode: lisp -*-
   2
   3 ;;; Time-stamp: <2010-02-10 14:07:45 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 (in-package :cl-user)
  16
  17 (cl:defpackage :cls-examples  ;; similar setup to cls-user, without test data
  18   (:use :common-lisp
  19         :lisp-matrix
  20         :common-lisp-statistics)
  21   (:shadowing-import-from :lisp-stat
  22       call-method call-next-method
  23
  24       expt + - * / ** mod rem abs 1+ 1- log exp sqrt sin cos tan
  25       asin acos atan sinh cosh tanh asinh acosh atanh float random
  26       truncate floor ceiling round minusp zerop plusp evenp oddp
  27       < <= = /= >= > > ;; complex
  28       conjugate realpart imagpart phase
  29       min max logand logior logxor lognot ffloor fceiling
  30       ftruncate fround signum cis
  31
  32       <= float imagpart)
  33   (:export localized-pathto
  34            *chkwgts-df*))
  35
  36 ;; start within the cls-examples package, which is similar to cls-user
  37 (in-package :cls-examples)
  38
  39 ;; we'll be loading from directories in the CLS homedir, so we want to
  40 ;; make it easier to reach.
  41 (defun localized-pathto (x)
  42   "return a string denoting the complete path.
  43 FIXME: UNIX-centric (though might work on Mac OSX).  Might want to
  44 return a pathspec, not a string/namespec"
  45   (check-type x string)
  46   (concatenate 'string *cls-home-dir* x))
  47
  48
  49 (progn
  50   ;; LISP-STAT COMPATIBILITY MODE:
  51   ;;
  52   ;; FIXME: Need to clean up data examples, licenses, attributions, etc.
  53   ;; The following breaks because we should use a package to hold
  54   ;; configuration details, and this would be the only package outside
  55   ;; of packages.lisp, as it holds the overall defsystem structure.
  56   (load-data "iris.lsp")  ;; (the above partially fixed).
  57   diabetes
  58   (variables))
  59
  60 (progn
  61   ;; COMMON LISP STATISTICS
  62   ;; Importing data from DSV text files.
  63
  64 #| We use as an example a simple R datasert, chickwts, which has one
  65    nominal categorical variable and one continuous categorical
  66    variable.   This dataset can be accessed in R as follows:
  67
  68 > data(chickwts)
  69 > dim(chickwts)
  70 [1] 71  2
  71 > summary(chickwts)
  72      weight             feed
  73  Min.   :108.0   casein   :12
  74  1st Qu.:204.5   horsebean:10
  75  Median :258.0   linseed  :12
  76  Mean   :261.3   meatmeal :11
  77  3rd Qu.:323.5   soybean  :14
  78  Max.   :423.0   sunflower:12
  79 >
  80 |#
  81
  82   (defparameter *chickwts-df* (filename.dsv->dataframe (localized-pathto "Data/R-chickwts.csv")))
  83   ;; *chickwts-df*
  84   (xref *chickwts-df* 1 1) ; => 160
  85   (xref *chickwts-df* 40 2) ; => "sunflower"
  86   *chickwts-df*)