List of usage examples for org.apache.commons.math.distribution ZipfDistributionImpl ZipfDistributionImpl
public ZipfDistributionImpl(final int numberOfElements, final double exponent) throws IllegalArgumentException
From source file:geogebra.kernel.statistics.AlgoDistribution.java
ZipfDistribution getZipfDistribution(int param, double param2) { if (zipf == null) zipf = new ZipfDistributionImpl(param, param2); else {/*from w w w . j a va2 s . c o m*/ zipf.setNumberOfElements(param); zipf.setExponent(param2); } return zipf; }
From source file:geogebra.common.kernel.statistics.AlgoDistribution.java
/** * @param param//from w ww . j a v a 2 s . c om * number of elements * @param param2 * exponent * @return Zipf distribution */ ZipfDistribution getZipfDistribution(int param, double param2) { if (zipf == null || zipf.getNumberOfElements() != param || zipf.getExponent() != param2) zipf = new ZipfDistributionImpl(param, param2); return zipf; }
From source file:geogebra.common.kernel.algos.AlgoBarChart.java
/** * Prepares list1 and list2 for use with probability distribution bar charts *///from w ww. j av a 2s. com private boolean prepareDistributionLists() { IntegerDistribution dist = null; int first = 0, last = 0; try { // get the distribution and the first, last list values for given // distribution type switch (type) { case TYPE_BARCHART_BINOMIAL: if (!(p1geo.isDefined() && p2geo.isDefined())) return false; int n = (int) Math.round(p1.getDouble()); double p = p2.getDouble(); dist = new BinomialDistributionImpl(n, p); first = 0; last = n; break; case TYPE_BARCHART_PASCAL: if (!(p1geo.isDefined() && p2geo.isDefined())) return false; n = (int) Math.round(p1.getDouble()); p = p2.getDouble(); dist = new PascalDistributionImpl(n, p); first = 0; last = (int) Math.max(1, (kernel).getXmax() + 1); break; case TYPE_BARCHART_ZIPF: if (!(p1geo.isDefined() && p2geo.isDefined())) return false; n = (int) Math.round(p1.getDouble()); p = p2.getDouble(); dist = new ZipfDistributionImpl(n, p); first = 0; last = n; break; case TYPE_BARCHART_POISSON: if (!p1geo.isDefined()) return false; double lambda = p1.getDouble(); dist = new PoissonDistributionImpl(lambda); first = 0; last = (int) Math.max(1, kernel.getXmax() + 1); break; case TYPE_BARCHART_HYPERGEOMETRIC: if (!(p1geo.isDefined() && p2geo.isDefined() && p3geo.isDefined())) return false; int pop = (int) p1.getDouble(); int successes = (int) p2.getDouble(); int sample = (int) p3.getDouble(); dist = new HypergeometricDistributionImpl(pop, successes, sample); first = Math.max(0, successes + sample - pop); last = Math.min(successes, sample); break; } // load class list and probability list loadDistributionLists(first, last, dist); } catch (Exception e) { App.debug(e.getMessage()); return false; } return true; }
From source file:geogebra.kernel.AlgoFunctionAreaSums.java
/** * Prepares list1 and list2 for use with probability distribution bar charts */// w ww. ja v a 2s .c om private boolean prepareDistributionLists() { IntegerDistribution dist = null; int first = 0, last = 0; try { // get the distribution and the first, last list values for given distribution type switch (type) { case TYPE_BARCHART_BINOMIAL: if (!(p1geo.isDefined() && p2geo.isDefined())) return false; int n = (int) Math.round(p1.getDouble()); double p = p2.getDouble(); dist = new BinomialDistributionImpl(n, p); first = 0; last = n; break; case TYPE_BARCHART_PASCAL: if (!(p1geo.isDefined() && p2geo.isDefined())) return false; n = (int) Math.round(p1.getDouble()); p = p2.getDouble(); dist = new PascalDistributionImpl(n, p); first = 0; last = (int) Math.max(1, kernel.getXmax() + 1); break; case TYPE_BARCHART_ZIPF: if (!(p1geo.isDefined() && p2geo.isDefined())) return false; n = (int) Math.round(p1.getDouble()); p = p2.getDouble(); dist = new ZipfDistributionImpl(n, p); first = 0; last = n; break; case TYPE_BARCHART_POISSON: if (!p1geo.isDefined()) return false; double lambda = p1.getDouble(); dist = new PoissonDistributionImpl(lambda); first = 0; last = (int) Math.max(1, kernel.getXmax() + 1); break; case TYPE_BARCHART_HYPERGEOMETRIC: if (!(p1geo.isDefined() && p2geo.isDefined() && p3geo.isDefined())) return false; int pop = (int) p1.getDouble(); int successes = (int) p2.getDouble(); int sample = (int) p3.getDouble(); dist = new HypergeometricDistributionImpl(pop, successes, sample); first = Math.max(0, successes + sample - pop); last = Math.min(successes, sample); break; } // load class list and probability list loadDistributionLists(first, last, dist); } catch (Exception e) { Application.debug(e.getMessage()); return false; } return true; }
From source file:geogebra.common.kernel.algos.AlgoFunctionAreaSums.java
/** * Prepares list1 and list2 for use with probability distribution bar charts *///ww w.j a v a2s. c o m private boolean prepareDistributionLists() { IntegerDistribution dist = null; int first = 0, last = 0; try { // get the distribution and the first, last list values for given // distribution type switch (type) { case BARCHART_BINOMIAL: if (!(p1geo.isDefined() && p2geo.isDefined())) return false; int n = (int) Math.round(p1.getDouble()); double p = p2.getDouble(); dist = new BinomialDistributionImpl(n, p); first = 0; last = n; break; case BARCHART_PASCAL: if (!(p1geo.isDefined() && p2geo.isDefined())) return false; n = (int) Math.round(p1.getDouble()); p = p2.getDouble(); dist = new PascalDistributionImpl(n, p); first = 0; last = (int) Math.max(1, (kernel).getXmax() + 1); break; case BARCHART_ZIPF: if (!(p1geo.isDefined() && p2geo.isDefined())) return false; n = (int) Math.round(p1.getDouble()); p = p2.getDouble(); dist = new ZipfDistributionImpl(n, p); first = 0; last = n; break; case BARCHART_POISSON: if (!p1geo.isDefined()) return false; double lambda = p1.getDouble(); dist = new PoissonDistributionImpl(lambda); first = 0; last = (int) Math.max(1, kernel.getXmax() + 1); break; case BARCHART_HYPERGEOMETRIC: if (!(p1geo.isDefined() && p2geo.isDefined() && p3geo.isDefined())) return false; int pop = (int) p1.getDouble(); int successes = (int) p2.getDouble(); int sample = (int) p3.getDouble(); dist = new HypergeometricDistributionImpl(pop, successes, sample); first = Math.max(0, successes + sample - pop); last = Math.min(successes, sample); break; } // load class list and probability list loadDistributionLists(first, last, dist); } catch (Exception e) { App.debug(e.getMessage()); return false; } return true; }
From source file:org.apache.accumulo.test.randomwalk.conditional.Transfer.java
@Override public void visit(State state, Environment env, Properties props) throws Exception { String table = state.getString("tableName"); Random rand = (Random) state.get("rand"); Connector conn = env.getConnector(); int numAccts = (Integer) state.get("numAccts"); // note: non integer exponents are slow ZipfDistributionImpl zdiBanks = new ZipfDistributionImpl((Integer) state.get("numBanks"), 1); String bank = Utils.getBank(zdiBanks.inverseCumulativeProbability(rand.nextDouble())); ZipfDistributionImpl zdiAccts = new ZipfDistributionImpl(numAccts, 1); String acct1 = Utils.getAccount(zdiAccts.inverseCumulativeProbability(rand.nextDouble())); String acct2 = Utils.getAccount(zdiAccts.inverseCumulativeProbability(rand.nextDouble())); while (acct2.equals(acct1)) { // intentionally not using zipf distribution to pick on retry acct2 = Utils.getAccount(rand.nextInt(numAccts)); }// w w w. ja v a2 s . c o m // TODO document how data should be read when using ConditionalWriter Scanner scanner = new IsolatedScanner(conn.createScanner(table, Authorizations.EMPTY)); scanner.setRange(new Range(bank)); scanner.fetchColumnFamily(new Text(acct1)); scanner.fetchColumnFamily(new Text(acct2)); Account a1 = new Account(); Account a2 = new Account(); Account a; for (Entry<Key, Value> entry : scanner) { String cf = entry.getKey().getColumnFamilyData().toString(); String cq = entry.getKey().getColumnQualifierData().toString(); if (cf.equals(acct1)) a = a1; else if (cf.equals(acct2)) a = a2; else throw new Exception("Unexpected column fam: " + cf); if (cq.equals("bal")) a.setBal(entry.getValue().toString()); else if (cq.equals("seq")) a.setSeq(entry.getValue().toString()); else throw new Exception("Unexpected column qual: " + cq); } int amt = rand.nextInt(50); log.debug("transfer req " + bank + " " + amt + " " + acct1 + " " + a1 + " " + acct2 + " " + a2); if (a1.bal >= amt) { ConditionalMutation cm = new ConditionalMutation(bank, new Condition(acct1, "seq").setValue(Utils.getSeq(a1.seq)), new Condition(acct2, "seq").setValue(Utils.getSeq(a2.seq))); cm.put(acct1, "bal", (a1.bal - amt) + ""); cm.put(acct2, "bal", (a2.bal + amt) + ""); cm.put(acct1, "seq", Utils.getSeq(a1.seq + 1)); cm.put(acct2, "seq", Utils.getSeq(a2.seq + 1)); ConditionalWriter cw = (ConditionalWriter) state.get("cw"); Status status = cw.write(cm).getStatus(); while (status == Status.UNKNOWN) { log.debug("retrying transfer " + status); status = cw.write(cm).getStatus(); } log.debug("transfer result " + bank + " " + status + " " + a1 + " " + a2); } }