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authorChris Dyer <cdyer@cs.cmu.edu>2012-10-11 14:06:32 -0400
committerChris Dyer <cdyer@cs.cmu.edu>2012-10-11 14:06:32 -0400
commit9339c80d465545aec5a6dccfef7c83ca715bf11f (patch)
tree64c56d558331edad1db3832018c80e799551c39a /utils/crp_test.cc
parent438dac41810b7c69fa10203ac5130d20efa2da9f (diff)
parentafd7da3b2338661657ad0c4e9eec681e014d37bf (diff)
Merge branch 'master' of https://github.com/redpony/cdec
Diffstat (limited to 'utils/crp_test.cc')
-rw-r--r--utils/crp_test.cc91
1 files changed, 0 insertions, 91 deletions
diff --git a/utils/crp_test.cc b/utils/crp_test.cc
deleted file mode 100644
index 0cdb7afd..00000000
--- a/utils/crp_test.cc
+++ /dev/null
@@ -1,91 +0,0 @@
-#include <iostream>
-#include <vector>
-#include <string>
-
-#define BOOST_TEST_MODULE CrpTest
-#include <boost/test/unit_test.hpp>
-#include <boost/test/floating_point_comparison.hpp>
-
-#include "ccrp.h"
-#include "sampler.h"
-
-using namespace std;
-
-MT19937 rng;
-
-BOOST_AUTO_TEST_CASE(Dist) {
- CCRP<string> crp(0.1, 5);
- double un = 0.25;
- int tt = 0;
- tt += crp.increment("hi", un, &rng);
- tt += crp.increment("foo", un, &rng);
- tt += crp.increment("bar", un, &rng);
- tt += crp.increment("bar", un, &rng);
- tt += crp.increment("bar", un, &rng);
- tt += crp.increment("bar", un, &rng);
- tt += crp.increment("bar", un, &rng);
- tt += crp.increment("bar", un, &rng);
- tt += crp.increment("bar", un, &rng);
- cout << "tt=" << tt << endl;
- cout << crp << endl;
- cout << " P(bar)=" << crp.prob("bar", un) << endl;
- cout << " P(hi)=" << crp.prob("hi", un) << endl;
- cout << " P(baz)=" << crp.prob("baz", un) << endl;
- cout << " P(foo)=" << crp.prob("foo", un) << endl;
- double x = crp.prob("bar", un) + crp.prob("hi", un) + crp.prob("baz", un) + crp.prob("foo", un);
- cout << " tot=" << x << endl;
- BOOST_CHECK_CLOSE(1.0, x, 1e-6);
- tt += crp.decrement("hi", &rng);
- tt += crp.decrement("bar", &rng);
- cout << crp << endl;
- tt += crp.decrement("bar", &rng);
- cout << crp << endl;
- cout << "tt=" << tt << endl;
-}
-
-BOOST_AUTO_TEST_CASE(Exchangability) {
- double tot = 0;
- double xt = 0;
- CCRP<int> crp(0.5, 1.0);
- int cust = 10;
- vector<int> hist(cust + 1, 0);
- for (int i = 0; i < cust; ++i) { crp.increment(1, 1.0, &rng); }
- const int samples = 100000;
- const bool simulate = true;
- for (int k = 0; k < samples; ++k) {
- if (!simulate) {
- crp.clear();
- for (int i = 0; i < cust; ++i) { crp.increment(1, 1.0, &rng); }
- } else {
- int da = rng.next() * cust;
- bool a = rng.next() < 0.5;
- if (a) {
- for (int i = 0; i < da; ++i) { crp.increment(1, 1.0, &rng); }
- for (int i = 0; i < da; ++i) { crp.decrement(1, &rng); }
- xt += 1.0;
- } else {
- for (int i = 0; i < da; ++i) { crp.decrement(1, &rng); }
- for (int i = 0; i < da; ++i) { crp.increment(1, 1.0, &rng); }
- }
- }
- int c = crp.num_tables(1);
- ++hist[c];
- tot += c;
- }
- BOOST_CHECK_EQUAL(cust, crp.num_customers());
- cerr << "P(a) = " << (xt / samples) << endl;
- cerr << "E[num tables] = " << (tot / samples) << endl;
- double error = fabs((tot / samples) - 5.4);
- cerr << " error = " << error << endl;
- BOOST_CHECK_MESSAGE(error < 0.1, "error is too big = " << error); // it's possible for this to fail, but
- // very, very unlikely
- for (int i = 1; i <= cust; ++i)
- cerr << i << ' ' << (hist[i]) << endl;
-}
-
-BOOST_AUTO_TEST_CASE(LP) {
- CCRP<string> crp(1,1,1,1,0.1,50.0);
- crp.increment("foo", 1.0, &rng);
- cerr << crp.log_crp_prob() << endl;
-}
-