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Provides a single jar containing all JAI-tools modules which you can
use instead of including individual modules in your project. Note:
It does not include the Jiffle scripting language or Jiffle image
operator.
The newest version!
/*
* Copyright 2009-2010 Michael Bedward
*
* This file is part of jai-tools.
*
* jai-tools is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* jai-tools is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with jai-tools. If not, see .
*
*/
package jaitools.numeric;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
/**
* Processor for extrema {@code Statistics}: MIN, MAX and RANGE.
*
* @see Statistic
* @see StreamingSampleStats
*
* @author Michael Bedward
* @since 1.0
* @version $Id: ExtremaProcessor.java 1383 2011-02-10 11:22:29Z michael.bedward $
*/
public class ExtremaProcessor extends AbstractProcessor {
private static final Set SUPPORTED = new HashSet();
static {
SUPPORTED.add(Statistic.MAX);
SUPPORTED.add(Statistic.MIN);
SUPPORTED.add(Statistic.RANGE);
};
private double min;
private double max;
/**
* {@inheritDoc}
*/
public Collection getSupported() {
return Collections.unmodifiableCollection(SUPPORTED);
}
/**
* {@inheritDoc}
*/
@Override
protected boolean update(Double sample) {
if (isAccepted(sample)) {
if (getNumAccepted() == 0) {
min = max = sample;
} else {
if (sample > max) {
max = sample;
}
if (sample < min) {
min = sample;
}
}
return true;
}
return false;
}
/**
* {@inheritDoc}
*/
public Double get(Statistic stat) {
if (getNumAccepted() == 0) {
return Double.NaN;
}
switch (stat) {
case MAX: return max;
case MIN: return min;
case RANGE: return max - min;
default:
throw new IllegalArgumentException(stat + " not supported by " + getClass().getName());
}
}
}
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