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agomez |
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#include "optinfo.h" |
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#include "errorhandler.h" |
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#include "gadget.h" |
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#include "global.h" |
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OptInfoHooke::OptInfoHooke()
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: OptInfo(), hookeiter(1000), rho(0.5), lambda(0.0), hookeeps(1e-4), bndcheck(0.9999) {
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type = OPTHOOKE;
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handle.logMessage(LOGMESSAGE, "Initialising Hooke & Jeeves optimisation algorithm");
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}
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void OptInfoHooke::read(CommentStream& infile, char* text) {
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handle.logMessage(LOGMESSAGE, "Reading Hooke & Jeeves optimisation parameters");
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int count = 0;
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while (!infile.eof() && strcasecmp(text, "[simann]") && strcasecmp(text, "[hooke]") && strcasecmp(text, "[bfgs]")) {
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infile >> ws;
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if (strcasecmp(text, "seed") == 0) {
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int seed = 0;
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infile >> seed >> ws;
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handle.logMessage(LOGMESSAGE, "Initialising random number generator with", seed);
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srand(seed);
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} else if (strcasecmp(text, "rho") == 0) {
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infile >> rho;
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count++;
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} else if (strcasecmp(text, "lambda") == 0) {
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infile >> lambda;
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count++;
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} else if (strcasecmp(text, "hookeeps") == 0) {
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infile >> hookeeps;
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count++;
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} else if (strcasecmp(text, "hookeiter") == 0) {
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infile >> hookeiter;
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count++;
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} else if (strcasecmp(text, "bndcheck") == 0) {
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infile >> bndcheck;
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count++;
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} else {
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handle.logMessage(LOGINFO, "Warning in optinfofile - unrecognised option", text);
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infile >> text; //read and ignore the next entry
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}
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infile >> text;
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}
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if (count == 0)
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handle.logMessage(LOGINFO, "Warning - no parameters specified for Hooke & Jeeves optimisation algorithm");
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//check the values specified in the optinfo file ...
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if ((rho < rathersmall) || (rho > 1.0)) {
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handle.logMessage(LOGINFO, "Warning in optinfofile - value of rho outside bounds", rho);
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rho = 0.5;
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}
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if ((lambda < 0.0) || (lambda > 1.0)) {
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handle.logMessage(LOGINFO, "Warning in optinfofile - value of lambda outside bounds", lambda);
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lambda = rho;
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}
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if ((bndcheck < 0.5) || (bndcheck > 1.0)) {
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handle.logMessage(LOGINFO, "Warning in optinfofile - value of bndcheck outside bounds", bndcheck);
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bndcheck = 0.9999;
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}
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if (hookeeps < rathersmall) {
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handle.logMessage(LOGINFO, "Warning in optinfofile - value of hookeeps outside bounds", hookeeps);
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hookeeps = 1e-4;
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}
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}
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void OptInfoHooke::Print(ofstream& outfile, int prec) {
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outfile << "; Hooke & Jeeves algorithm ran for " << iters
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<< " function evaluations\n; and stopped when the likelihood value was "
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<< setprecision(prec) << score;
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if (converge == -1)
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outfile << "\n; because an error occured during the optimisation\n";
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else if (converge == 1)
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outfile << "\n; because the convergence criteria were met\n";
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else
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outfile << "\n; because the maximum number of function evaluations was reached\n";
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}
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