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www/tests/demo.mjs

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+import assert from 'assert';
+import { Objective } from '../src/Objective.js';
+import { PSO } from '../src/PSO.js';
+import { monod, pirt } from '../src/conhecidos.js';
+
+function monodPirt(_, y, params) {
+  const K_S = params[0];
+  const mu_max = params[1];
+  const m_S = params[2];
+  const Y_XS = params[3];
+  const X = y[0];
+  const S = y[1];
+  const dmu = monod(S, mu_max, K_S);
+  const dX = X * dmu;
+  const qS = pirt(dmu, Y_XS, m_S);
+  const dS = -qS * X;
+  return [dX, dS];
+}
+
+const demoData = [
+  ['tempo', 'substrato', 'celulas'],
+  [0, 3.0, 0.05],
+  [1, 2.9835, 0.0595],
+  [2, 2.964, 0.0708],
+  [3, 2.9406, 0.0843],
+  [4, 2.9129, 0.1003],
+  [5, 2.8799, 0.1194],
+  [6, 2.8407, 0.1421],
+  [7, 2.794, 0.1691],
+  [8, 2.7385, 0.2011],
+  [9, 2.6725, 0.2393],
+  [10, 2.5942, 0.2846],
+  [11, 2.501, 0.3384],
+  [12, 2.3905, 0.4023],
+  [13, 2.2594, 0.478],
+  [14, 2.104, 0.5678],
+  [15, 1.9202, 0.674],
+];
+
+const obj = new Objective(demoData, monodPirt, 100, 2);
+const optim = new PSO(obj, 30, [
+  [0.005, 2],
+  [0.05, 0.9],
+  [0.0015, 0.05],
+  [0.3, 0.7],
+]);
+optim.run(1.49618, 1.49618, 0.7298, 30);
+
+assert(Number.isFinite(optim.err_best_g));
+console.log('Final error', optim.err_best_g);