Source

orange / source / orange / examples.cpp

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
/*
    This file is part of Orange.
    
    Copyright 1996-2010 Faculty of Computer and Information Science, University of Ljubljana
    Contact: janez.demsar@fri.uni-lj.si

    Orange is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Orange is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Orange.  If not, see <http://www.gnu.org/licenses/>.
*/


#include <algorithm>
#include <iomanip>
#include "stladdon.hpp"
#include "vars.hpp"
#include "domain.hpp"

#include "examplegen.hpp"
#include "values.hpp"
#include "distvars.hpp"

#include "examples.ppp"
#include "crc.h"

DEFINE_TOrangeVector_classDescription(PExample, "TExampleList", true, ORANGE_API)

long exampleId = 0;

long getExampleId()
{ return ++exampleId; }
 
TExample::TExample()
: values(NULL),
  values_end(NULL),
  classes_end(NULL),
  name(NULL),
  id(getExampleId())
{}


TExample::TExample(PDomain dom, bool initMetas)
: domain(dom),
  values(NULL),
  values_end(NULL),
  classes_end(NULL),
  name(NULL),
  id(getExampleId())
{ if (!dom)
    raiseError("example needs domain");

  const int attrs = domain->variables->size();
  const int classes = domain->classVars->size();
  TValue *vi = values = mlnew TValue[attrs+classes];
  values_end = values + attrs;
  classes_end = values_end + classes;
  PITERATE(TVarList, di, dom->variables)
    *(vi++) = (*di)->DK();
  PITERATE(TVarList, ci, dom->classVars) {
    *(vi++) = (*ci)->DK();
  }
  if (initMetas)
    ITERATE(TMetaVector, mi, dom->metas)
      if (!(*mi).optional)
        setMeta((*mi).id, (*mi).variable->DK());
}


TExample::TExample(const TExample &orig, bool copyMetas)
: domain(orig.domain),
  meta(copyMetas ? orig.meta : TMetaValues()),
  name(orig.name ? new string(*orig.name) : NULL),
  id(orig.id)
{ if (domain) {
    const int attrs = domain->variables->size();
    const int classes = orig.classes_end - orig.values_end;
    TValue *vi = values = mlnew TValue[attrs+classes];
    values_end = values + attrs;
    classes_end = values_end + classes;
    for(TValue *origi = orig.values, *thisi = values; thisi != classes_end; *(thisi++) = *(origi++));
  }
  else 
      values = values_end = classes_end = NULL;
}


TExample::TExample(PDomain dom, const TExample &orig, bool copyMetas)
: domain(dom),
  meta(),
  name(NULL),
  id(orig.id)
{ if (!dom)
    raiseError("example needs a domain");

  const int attrs = domain->variables->size();
  const int classes = domain->classVars->size();
  values = mlnew TValue[attrs + classes];
  values_end = values + attrs;
  classes_end = values_end + classes;
  domain->convert(*this, orig, !copyMetas);
}


void TExample::insertVal(TValue &srcval, PVariable var, const long &metaID, vector<bool> &defined)
{
  int position = var ? domain->getVarNum(var, false) : ILLEGAL_INT;

  if (position != ILLEGAL_INT) {
    // Check if this is an ordinary attribute
    if (position >= 0) {
      if (!mergeTwoValues(values[position], srcval, defined[position]))
        raiseError("ambiguous value of attribute '%s'", var->get_name().c_str());
      else
        defined[position] = true;
    }
    
    else {
      // Is it meta?
      if (hasMeta(position)) {
        if (!mergeTwoValues(meta[metaID], srcval, true))
          raiseError("ambiguous value for meta-attribute '%s'", var->get_name().c_str());
      }
      else
        setMeta(position, srcval);
    }
  }


  else {
    /* This attribute is not required in the example.
       But if it is meta and there is no other meta-attribute with same id,
       we shall copy it nevertheless */
    if (metaID && !domain->getMetaVar(metaID, false))
      if (hasMeta(metaID)) {
        if (!mergeTwoValues(meta[metaID], srcval, true))
          raiseError("ambiguous value for meta-attribute %i", position);
      }
      else
        setMeta(metaID  , srcval);
  }
}


TExample::TExample(PDomain dom, PExampleList elist)
: domain(dom),
  name(NULL),
  id(elist->size() ? elist->front()->id : getExampleId())
{
  if (!dom)
    raiseError("example needs a domain");
  if (dom->classVars->size()) {
      raiseError("example merging does not support multiple classes");
  }

  const int attrs = domain->variables->size();
  const int classes = domain->classVars->size();
  vector<bool> defined(attrs, false);

  TValue *vi = values = mlnew TValue[attrs];
  values_end = values + attrs;
  PITERATE(TVarList, di, dom->variables)
    *(vi++) = (*di)->DK();

  PITERATE(TExampleList, eli, elist) {
    TVarList::iterator vli((*eli)->domain->variables->begin());
    TExample::iterator ei((*eli)->begin()), ee((*eli)->end());
    for(; ei!=ee; ei++, vli++) 
      if (!(*ei).isSpecial())
        insertVal(*ei, *vli, 0, defined);

    set<int> metasNotToCopy;
    ITERATE(TMetaVector, mai, (*eli)->domain->metas) {
      metasNotToCopy.insert((*mai).id);
      if ((*eli)->hasMeta((*mai).id))
        insertVal((*eli)->getMeta((*mai).id), (*mai).variable, (*mai).id, defined);
    }

    set<int>::iterator mend(metasNotToCopy.end());
    ITERATE(TMetaValues, mi, (*eli)->meta)
      if (metasNotToCopy.find((*mi).first)==mend)
        insertVal((*mi).second, PVariable(), (*mi).first, defined);
  }

  ITERATE(TMetaVector, mai, domain->metas)
    if (!(*mai).optional && !hasMeta((*mai).id))
      setMeta((*mai).id, (*mai).variable->DK());
}


TExample::~TExample()
{ 
  mldelete[] values; 
  if (name)
    delete name;
}


int TExample::traverse(visitproc visit, void *arg) const
{ TRAVERSE(TOrange::traverse);
  
  for(TValue *vi = values, *ve = classes_end; vi!=ve; vi++)
    if (vi->svalV)
      PVISIT(vi->svalV);

  const_ITERATE(TMetaValues, mi, meta)
    if ((*mi).second.svalV)
      PVISIT((*mi).second.svalV);

  return 0;
}


int TExample::dropReferences()
{
  for(TValue *vi = values, *ve = classes_end; vi!=ve; vi++)
    if (vi->svalV)
      vi->svalV.~PSomeValue();

  const_ITERATE(TMetaValues, mi, meta)
    if ((*mi).second.svalV)
      (*mi).second.svalV.~PSomeValue();

  delete name;
  name = NULL;

  return 0;
}


TExample &TExample::operator =(const TExample &orig)
{
  if (!orig.domain) {
    if (values)
       mldelete[] values;
    values = values_end = classes_end = NULL;
    domain = PDomain();
  }

  else {
    const int attrs = orig.values_end - orig.values;
    const int classes = orig.classes_end - orig.values_end;
    if (domain != orig.domain) {
      if ((values_end - values != attrs) || (classes_end - values_end != classes)) {
        if (values)
          mldelete[] values;
        values = mlnew TValue[attrs+classes];
        values_end = values + attrs;
        classes_end = values_end + classes;
      }
      domain = orig.domain;
    }

    for(TValue *origi = orig.values, *thisi = values; thisi != classes_end; *(thisi++) = *(origi++));
  }

  meta = orig.meta;
  
  if (name) {
    delete name;
    name = NULL;
  }
  if (orig.name)
    name = new string(*orig.name);

  id = orig.id;
  
  return *this;
}


TValue TExample::getValue(PVariable &var) const
{
  // if there is no getValueFrom, throw an exception
  const int position = domain->getVarNum(var, var->getValueFrom);
  return position != ILLEGAL_INT ? operator[](position) : var->computeValue(*this);
}

TValue &TExample::operator[] (PVariable &var)
{ return operator[](domain->getVarNum(var)); }


const TValue &TExample::operator[] (PVariable &var) const
{ return operator[](domain->getVarNum(var)); }


TValue &TExample::operator[] (const string &name)
{ return operator[](domain->getVarNum(name)); }


const TValue &TExample::operator[] (const string &name) const
{ return operator[](domain->getVarNum(name)); }


const TValue &TExample::missingMeta(const int &i) const
{
  const TMetaDescriptor *md = domain->metas[i];
  if (md)
    if (md->optional)
      return md->variable->DK();
    else
      if (md->variable->get_name().size())
        raiseError("the value of meta attribute '%s' is missing", md->variable->get_name().c_str());

  // no descriptor or no name
  raiseError("meta value with id %i is missing", i);
  throw 0;
}


bool TExample::operator < (const TExample &other) const
{ 
  if (domain != other.domain)
    raiseError("examples are from different domains");
  return compare(other)<0;
}


bool TExample::operator == (const TExample &other) const
{ 
  if (domain != other.domain)
    raiseError("examples are from different domains");

  int Na = domain->variables->size() + domain->classVars->size();
  if (!Na)
    return true;
  for (const_iterator vi1(begin()), vi2(other.begin()); (*vi1==*vi2) && --Na; vi1++, vi2++);
  return !Na;
}


int TExample::compare(const TExample &other, const bool ignoreClass) const
{ if (domain != other.domain)
    raiseError("examples are from different domains");
  int Na = domain->variables->size();
  if (ignoreClass) {
      if (domain->classVar) {
          Na--;
      }
  }
  else {
      Na += domain->classVars->size();
  }
  if (!Na)
    return 0;

  const_iterator i1(begin()), i2(other.begin());
  int comp;
  while (0==(comp= (*(i1++)).compare(*(i2++))) && --Na);
  return comp;
}


bool TExample::compatible(const TExample &other, const bool ignoreClass) const
{ if (domain != other.domain)
    raiseError("examples are from different domains");
  
  int Na = domain->variables->size();
  if (ignoreClass) {
      if (domain->classVar) {
          Na--;
      }
  }
  else {
      Na += domain->classVars->size();
  }
  if (!Na)
    return true;
  for (const_iterator i1(begin()), i2(other.begin()); (*i1).compatible(*i2) && --Na; i1++, i2++);
  return !Na;
}


#include "stringvars.hpp"

inline void addToCRC(unsigned int &crc, const PVarList &vars, TValue *&vli)
{
  const_PITERATE(TVarList, vi, vars) {
    if ((*vi)->varType == TValue::INTVAR)
      add_CRC(vli->isSpecial() ? ILLEGAL_INT : vli->intV, crc);
    else if (((*vi)->varType == TValue::FLOATVAR))
      add_CRC(vli->isSpecial() ? ILLEGAL_FLOAT : vli->floatV, crc);
    else if ((*vi)->varType == STRINGVAR) {
      if (vli->isSpecial() || !vli->svalV)
        add_CRC(ILLEGAL_INT, crc);
      else
        add_CRC(vli->svalV.AS(TStringValue)->value.c_str(), crc);
    }
    vli++;
  }
}

void TExample::addToCRC(unsigned int &crc, const bool includeMetas) const
{
  TValue *vli = values;
  ::addToCRC(crc, domain->variables, vli);
  ::addToCRC(crc, domain->classVars, vli);
  
  if (includeMetas) {
    const_ITERATE(TMetaValues, mi, meta) {
      add_CRC((const unsigned long)(mi->first), crc);
      const TValue &val = mi->second;
      if (val.varType == TValue::INTVAR)
        add_CRC(val.isSpecial() ? ILLEGAL_INT : val.intV, crc);
      else if (val.varType == TValue::INTVAR)
        add_CRC(val.isSpecial() ? ILLEGAL_FLOAT: val.floatV, crc);
      else if (val.varType == STRINGVAR) {
        if (val.isSpecial()  || !vli->svalV)
          add_CRC(ILLEGAL_INT, crc);
        else
          add_CRC(val.svalV.AS(TStringValue)->value.c_str(), crc);
      }
    }
  }
}


int TExample::sumValues(const bool includeMetas) const
{ unsigned int crc;
  INIT_CRC(crc);
  addToCRC(crc, includeMetas);
  FINISH_CRC(crc);
  return int(crc & 0x7fffffff);
}
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.