1 | /* |
---|
2 | * |
---|
3 | * ********************************************************************* |
---|
4 | * (C) COPYRIGHT 1995 UNIVERSITY OF CHICAGO |
---|
5 | * ********************************************************************* |
---|
6 | * |
---|
7 | * This software was authored by |
---|
8 | * |
---|
9 | * D. Levine |
---|
10 | * Mathematics and Computer Science Division Argonne National Laboratory |
---|
11 | * Argonne IL 60439 |
---|
12 | * levine@mcs.anl.gov |
---|
13 | * (708) 252-6735 |
---|
14 | * (708) 252-5986 (FAX) |
---|
15 | * |
---|
16 | * with programming assistance of participants in Argonne National |
---|
17 | * Laboratory's SERS program. |
---|
18 | * |
---|
19 | * This program contains material protectable under copyright laws of the |
---|
20 | * United States. Permission is hereby granted to use it, reproduce it, |
---|
21 | * to translate it into another language, and to redistribute it to |
---|
22 | * others at no charge except a fee for transferring a copy, provided |
---|
23 | * that you conspicuously and appropriately publish on each copy the |
---|
24 | * University of Chicago's copyright notice, and the disclaimer of |
---|
25 | * warranty and Government license included below. Further, permission |
---|
26 | * is hereby granted, subject to the same provisions, to modify a copy or |
---|
27 | * copies or any portion of it, and to distribute to others at no charge |
---|
28 | * materials containing or derived from the material. |
---|
29 | * |
---|
30 | * The developers of the software ask that you acknowledge its use in any |
---|
31 | * document referencing work based on the program, such as published |
---|
32 | * research. Also, they ask that you supply to Argonne National |
---|
33 | * Laboratory a copy of any published research referencing work based on |
---|
34 | * the software. |
---|
35 | * |
---|
36 | * Any entity desiring permission for further use must contact: |
---|
37 | * |
---|
38 | * J. Gleeson |
---|
39 | * Industrial Technology Development Center Argonne National Laboratory |
---|
40 | * Argonne IL 60439 |
---|
41 | * gleesonj@smtplink.eid.anl.gov |
---|
42 | * (708) 252-6055 |
---|
43 | * |
---|
44 | * ******************************************************************** |
---|
45 | * DISCLAIMER |
---|
46 | * |
---|
47 | * THIS PROGRAM WAS PREPARED AS AN ACCOUNT OF WORK SPONSORED BY AN AGENCY |
---|
48 | * OF THE UNITED STATES GOVERNMENT. NEITHER THE UNIVERSITY OF CHICAGO, |
---|
49 | * THE UNITED STATES GOVERNMENT NOR ANY OF THEIR EMPLOYEES MAKE ANY |
---|
50 | * WARRANTY, EXPRESS OR IMPLIED, OR ASSUMES ANY LEGAL LIABILITY OR |
---|
51 | * RESPONSIBILITY FOR THE ACCURACY, COMPLETENESS, OR USEFULNESS OF ANY |
---|
52 | * INFORMATION OR PROCESS DISCLOSED, OR REPRESENTS THAT ITS USE WOULD NOT |
---|
53 | * INFRINGE PRIVATELY OWNED RIGHTS. |
---|
54 | * |
---|
55 | * ********************************************************************** |
---|
56 | * GOVERNMENT LICENSE |
---|
57 | * |
---|
58 | * The Government is granted for itself and others acting on its behalf a |
---|
59 | * paid-up, non-exclusive, irrevocable worldwide license in this computer |
---|
60 | * software to reproduce, prepare derivative works, and perform publicly |
---|
61 | * and display publicly. |
---|
62 | */ |
---|
63 | |
---|
64 | /***************************************************************************** |
---|
65 | * FILE: crossover.c: This file contains the data structure neutral |
---|
66 | * crossover routines. |
---|
67 | * |
---|
68 | * Authors: David M. Levine, Philip L. Hallstrom, David M. Noelle, |
---|
69 | * Brian P. Walenz |
---|
70 | *****************************************************************************/ |
---|
71 | |
---|
72 | #include "pgapack.h" |
---|
73 | |
---|
74 | /*U**************************************************************************** |
---|
75 | PGACrossover - performs crossover on two parent strings to create two |
---|
76 | child strings (via side-effect). The type of crossover performed is |
---|
77 | either the default or that specified by PGASetCrossoverType |
---|
78 | |
---|
79 | Category: Operators |
---|
80 | |
---|
81 | Inputs: |
---|
82 | ctx - context variable |
---|
83 | p1 - the first parent string |
---|
84 | p2 - the second parent string |
---|
85 | pop1 - symbolic constant of the population containing string p1 and p2 |
---|
86 | c1 - the first child string |
---|
87 | c2 - the second child string |
---|
88 | pop2 - symbolic constant of the population to contain string c1 and c2 |
---|
89 | |
---|
90 | Outputs: |
---|
91 | c1 and c2 in pop2 are children of p1 and p2 in pop1. p1 and p2 are not |
---|
92 | modified. |
---|
93 | |
---|
94 | Example: |
---|
95 | Perform crossover on the two parent strings mom and dad in population |
---|
96 | PGA_OLDPOP, and insert the child strings, child1 and child1, in |
---|
97 | population PGA_NEWPOP. |
---|
98 | |
---|
99 | PGAContext *ctx; |
---|
100 | int mom, dad, child1, child2; |
---|
101 | : |
---|
102 | PGACrossover(ctx, mom, dad, PGA_OLDPOP, child1, child2, PGA_NEWPOP); |
---|
103 | |
---|
104 | ****************************************************************************U*/ |
---|
105 | void PGACrossover ( PGAContext *ctx, int p1, int p2, int pop1, |
---|
106 | int c1, int c2, int pop2 ) |
---|
107 | { |
---|
108 | int fp1, fp2, fc1, fc2; |
---|
109 | |
---|
110 | PGADebugEntered("PGACrossover"); |
---|
111 | PGADebugPrint( ctx, PGA_DEBUG_PRINTVAR, "PGACrossover", " p1 = ", |
---|
112 | PGA_INT, (void *) &p1 ); |
---|
113 | PGADebugPrint( ctx, PGA_DEBUG_PRINTVAR, "PGACrossover", " p2 = ", |
---|
114 | PGA_INT, (void *) &p2 ); |
---|
115 | PGADebugPrint( ctx, PGA_DEBUG_PRINTVAR, "PGACrossover", " c1 = ", |
---|
116 | PGA_INT, (void *) &c1 ); |
---|
117 | PGADebugPrint( ctx, PGA_DEBUG_PRINTVAR, "PGACrossover", " c2 = ", |
---|
118 | PGA_INT, (void *) &c2 ); |
---|
119 | |
---|
120 | if (ctx->fops.Crossover) { |
---|
121 | fp1 = ((p1 == PGA_TEMP1) || (p1 == PGA_TEMP2)) ? p1 : p1+1; |
---|
122 | fp2 = ((p2 == PGA_TEMP1) || (p2 == PGA_TEMP2)) ? p2 : p2+1; |
---|
123 | fc1 = ((c1 == PGA_TEMP1) || (c1 == PGA_TEMP2)) ? c1 : c1+1; |
---|
124 | fc2 = ((c2 == PGA_TEMP1) || (c2 == PGA_TEMP2)) ? c2 : c2+1; |
---|
125 | (*ctx->fops.Crossover)(&ctx, &fp1, &fp2, &pop1, &fc1, &fc2, &pop2); |
---|
126 | } else { |
---|
127 | (*ctx->cops.Crossover)(ctx, p1, p2, pop1, c1, c2, pop2); |
---|
128 | } |
---|
129 | |
---|
130 | PGASetEvaluationUpToDateFlag(ctx, c1, pop2, PGA_FALSE); |
---|
131 | PGASetEvaluationUpToDateFlag(ctx, c2, pop2, PGA_FALSE); |
---|
132 | |
---|
133 | PGADebugExited("PGACrossover"); |
---|
134 | } |
---|
135 | |
---|
136 | /*U*************************************************************************** |
---|
137 | PGAGetCrossoverType - Returns the type of crossover selected |
---|
138 | |
---|
139 | Category: Operators |
---|
140 | |
---|
141 | Inputs: |
---|
142 | ctx - context variable |
---|
143 | |
---|
144 | Outputs: |
---|
145 | Returns the integer corresponding to the symbolic constant |
---|
146 | used to specify the crossover type |
---|
147 | |
---|
148 | Example: |
---|
149 | PGAContext *ctx; |
---|
150 | int crosstype; |
---|
151 | : |
---|
152 | crosstype = PGAGetCrossoverType(ctx); |
---|
153 | switch (crosstype) { |
---|
154 | case PGA_CROSSOVER_ONEPT: |
---|
155 | printf("Crossover Type = PGA_CROSSOVER_ONEPT\n"); |
---|
156 | break; |
---|
157 | case PGA_CROSSOVER_TWOPT: |
---|
158 | printf("Crossover Type = PGA_CROSSOVER_TWOPT\n"); |
---|
159 | break; |
---|
160 | case PGA_CROSSOVER_UNIFORM: |
---|
161 | printf("Crossover Type = PGA_CROSSOVER_UNIFORM\n"); |
---|
162 | break; |
---|
163 | } |
---|
164 | |
---|
165 | ***************************************************************************U*/ |
---|
166 | int PGAGetCrossoverType (PGAContext *ctx) |
---|
167 | { |
---|
168 | PGADebugEntered("PGAGetCrossoverType"); |
---|
169 | |
---|
170 | PGAFailIfNotSetUp("PGAGetCrossoverType"); |
---|
171 | |
---|
172 | PGADebugExited("PGAGetCrossoverType"); |
---|
173 | |
---|
174 | return(ctx->ga.CrossoverType); |
---|
175 | } |
---|
176 | |
---|
177 | /*U*************************************************************************** |
---|
178 | PGAGetCrossoverProb - Returns the crossover probability |
---|
179 | |
---|
180 | Category: Operators |
---|
181 | |
---|
182 | Inputs: |
---|
183 | ctx - context variable |
---|
184 | |
---|
185 | Outputs: |
---|
186 | The crossover probability |
---|
187 | |
---|
188 | Example: |
---|
189 | PGAContext *ctx; |
---|
190 | double pc; |
---|
191 | : |
---|
192 | pc = PGAGetCrossoverProb(ctx); |
---|
193 | |
---|
194 | ***************************************************************************U*/ |
---|
195 | double PGAGetCrossoverProb (PGAContext *ctx) |
---|
196 | { |
---|
197 | PGADebugEntered("PGAGetCrossoverProb"); |
---|
198 | |
---|
199 | PGAFailIfNotSetUp("PGAGetCrossoverProb"); |
---|
200 | |
---|
201 | PGADebugExited("PGAGetCrossoverProb"); |
---|
202 | |
---|
203 | return(ctx->ga.CrossoverProb); |
---|
204 | } |
---|
205 | |
---|
206 | /*U*************************************************************************** |
---|
207 | PGAGetUniformCrossoverProb - returns the probability of a bit being |
---|
208 | selected from the first child string in uniform crossover |
---|
209 | |
---|
210 | Category: Operators |
---|
211 | |
---|
212 | Inputs: |
---|
213 | ctx - context variable |
---|
214 | |
---|
215 | Outputs: |
---|
216 | The uniform crossover probability |
---|
217 | |
---|
218 | Example: |
---|
219 | PGAContext *ctx; |
---|
220 | double pu; |
---|
221 | : |
---|
222 | pu = PGAGetUniformCrossoverProb(ctx); |
---|
223 | |
---|
224 | ***************************************************************************U*/ |
---|
225 | double PGAGetUniformCrossoverProb (PGAContext *ctx) |
---|
226 | { |
---|
227 | PGADebugEntered("PGAGetUniformCrossoverProb"); |
---|
228 | |
---|
229 | PGAFailIfNotSetUp("PGAGetUniformCrossoverProb"); |
---|
230 | |
---|
231 | PGADebugExited("PGAGetUniformCrossoverProb"); |
---|
232 | |
---|
233 | return(ctx->ga.UniformCrossProb); |
---|
234 | } |
---|
235 | |
---|
236 | /*U**************************************************************************** |
---|
237 | PGASetCrossoverType - specify the type of crossover to use. Valid choices |
---|
238 | are PGA_CROSSOVER_ONEPT, PGA_CROSSOVER_TWOPT, or PGA_CROSSOVER_UNIFORM for |
---|
239 | one-point, two-point, and uniform crossover, respectively. The default is |
---|
240 | PGA_CROSSOVER_TWOPT. |
---|
241 | |
---|
242 | Category: Operators |
---|
243 | |
---|
244 | Inputs: |
---|
245 | ctx - context variable |
---|
246 | crossover_type - symbolic constant to specify crossover type |
---|
247 | |
---|
248 | Outputs: |
---|
249 | None |
---|
250 | |
---|
251 | Example: |
---|
252 | Use uniform crossover when crossingover strings. |
---|
253 | |
---|
254 | PGAContext *ctx; |
---|
255 | : |
---|
256 | PGASetCrossoverType(ctx, PGA_CROSSOVER_UNIFORM); |
---|
257 | |
---|
258 | ****************************************************************************U*/ |
---|
259 | void PGASetCrossoverType (PGAContext *ctx, int crossover_type) |
---|
260 | { |
---|
261 | |
---|
262 | PGADebugEntered("PGASetCrossoverType"); |
---|
263 | |
---|
264 | switch (crossover_type) { |
---|
265 | case PGA_CROSSOVER_ONEPT: |
---|
266 | case PGA_CROSSOVER_TWOPT: |
---|
267 | case PGA_CROSSOVER_UNIFORM: |
---|
268 | ctx->ga.CrossoverType = crossover_type; |
---|
269 | break; |
---|
270 | default: |
---|
271 | PGAError( ctx, |
---|
272 | "PGASetCrossoverType: Invalid value of crossover_type:", |
---|
273 | PGA_FATAL, PGA_INT, (void *) &crossover_type ); |
---|
274 | }; |
---|
275 | |
---|
276 | PGADebugExited("PGASetCrossoverType"); |
---|
277 | } |
---|
278 | |
---|
279 | |
---|
280 | /*U**************************************************************************** |
---|
281 | PGASetCrossoverProb - Probability that a selected string will undergo |
---|
282 | crossover. The default is 0.85. |
---|
283 | |
---|
284 | Category: Operators |
---|
285 | |
---|
286 | Inputs: |
---|
287 | ctx - context variable |
---|
288 | p - the crossover probability |
---|
289 | |
---|
290 | Outputs: |
---|
291 | None |
---|
292 | |
---|
293 | Example: |
---|
294 | Make crossover happen infrequently. |
---|
295 | |
---|
296 | PGAContext *ctx; |
---|
297 | : |
---|
298 | PGASetCrossoverProb(ctx,0.001); |
---|
299 | |
---|
300 | ****************************************************************************U*/ |
---|
301 | void PGASetCrossoverProb( PGAContext *ctx, double crossover_prob) |
---|
302 | { |
---|
303 | PGADebugEntered("PGASetCrossoverProb"); |
---|
304 | |
---|
305 | if ((crossover_prob < 0.0) || (crossover_prob > 1.0)) |
---|
306 | PGAError ( ctx, |
---|
307 | "PGASetCrossoverProb: Invalid value of crossover_prob:", |
---|
308 | PGA_FATAL, PGA_DOUBLE, (void *) &crossover_prob); |
---|
309 | else |
---|
310 | ctx->ga.CrossoverProb = crossover_prob; |
---|
311 | |
---|
312 | PGADebugExited("PGASetCrossoverProb"); |
---|
313 | } |
---|
314 | |
---|
315 | /*U**************************************************************************** |
---|
316 | PGASetUniformCrossoverProb - Probability used in uniform crossover |
---|
317 | to specify that an allele value value be selected from a particular |
---|
318 | parent. The default is 0.6. The crossover type must have been set |
---|
319 | to PGA_CROSSOVER_UNIFORM with PGASetCrossoverType for this function |
---|
320 | call to have any effect. |
---|
321 | |
---|
322 | Category: Operators |
---|
323 | |
---|
324 | Inputs: |
---|
325 | ctx - context variable |
---|
326 | p - the crossover probability |
---|
327 | |
---|
328 | Outputs: |
---|
329 | None |
---|
330 | |
---|
331 | Example: |
---|
332 | PGAContext *ctx; |
---|
333 | : |
---|
334 | PGASetUniformCrossoverProb(ctx,0.9); |
---|
335 | |
---|
336 | ****************************************************************************U*/ |
---|
337 | void PGASetUniformCrossoverProb( PGAContext *ctx, double uniform_cross_prob) |
---|
338 | { |
---|
339 | PGADebugEntered("PGASetUniformCrossoverProb"); |
---|
340 | |
---|
341 | if ((uniform_cross_prob < 0.0) || (uniform_cross_prob > 1.0)) |
---|
342 | PGAError ( ctx, |
---|
343 | "PGASetUniformCrossoverProb: Invalid value of " |
---|
344 | "uniform_cross_prob:", PGA_FATAL, PGA_DOUBLE, |
---|
345 | (void *) &uniform_cross_prob); |
---|
346 | else |
---|
347 | ctx->ga.UniformCrossProb = uniform_cross_prob; |
---|
348 | |
---|
349 | PGADebugExited("PGASetUniformCrossoverProb"); |
---|
350 | } |
---|