本文整理汇总了Java中org.apache.commons.math.stat.ranking.NaNStrategy.FIXED属性的典型用法代码示例。如果您正苦于以下问题：Java NaNStrategy.FIXED属性的具体用法？Java NaNStrategy.FIXED怎么用？Java NaNStrategy.FIXED使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类org.apache.commons.math.stat.ranking.NaNStrategy的用法示例。
在下文中一共展示了NaNStrategy.FIXED属性的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: rank
public static double[] rank(double[] data) {
// Array recording initial positions of data to be ranked
IntDoublePair[] ranks = new IntDoublePair[data.length];
for (int i = 0; i < data.length; i++) {
ranks[i] = new IntDoublePair(data[i], i);
}
// Recode, remove or record positions of NaNs
List<Integer> nanPositions = null;
switch (nanStrategy) {
case MAXIMAL: // Replace NaNs with +INFs
recodeNaNs(ranks, Double.POSITIVE_INFINITY);
break;
case MINIMAL: // Replace NaNs with -INFs
recodeNaNs(ranks, Double.NEGATIVE_INFINITY);
break;
case REMOVED: // Drop NaNs from data
ranks = removeNaNs(ranks);
break;
case FIXED: // Record positions of NaNs
nanPositions = getNanPositions(ranks);
break;
default: // this should not happen unless NaNStrategy enum is changed
throw MathRuntimeException.createInternalError(null);
}
// Sort the IntDoublePairs
Arrays.sort(ranks);
// Walk the sorted array, filling output array using sorted positions,
// resolving ties as we go
double[] out = new double[ranks.length];
int pos = 1; // position in sorted array
out[ranks[0].getPosition()] = pos;
List<Integer> tiesTrace = new ArrayList<Integer>();
tiesTrace.add(ranks[0].getPosition());
for (int i = 1; i < ranks.length; i++) {
if (Double.compare(ranks[i].getValue(), ranks[i - 1].getValue()) > 0) {
// tie sequence has ended (or had length 1)
pos = i + 1;
if (tiesTrace.size() > 1) { // if seq is nontrivial, resolve
resolveTie(out, tiesTrace);
}
tiesTrace = new ArrayList<Integer>();
tiesTrace.add(ranks[i].getPosition());
} else {
// tie sequence continues
tiesTrace.add(ranks[i].getPosition());
}
out[ranks[i].getPosition()] = pos;
}
if (tiesTrace.size() > 1) { // handle tie sequence at end
resolveTie(out, tiesTrace);
}
if (nanStrategy == NaNStrategy.FIXED) {
restoreNaNs(out, nanPositions);
}
return out;
}
示例2: WilcoxonSignedRankTestImpl
/**
* Create a test instance where NaN's are left in place and ties get
* the average of applicable ranks. Use this unless you are very sure
* of what you are doing.
*/
public WilcoxonSignedRankTestImpl() {
naturalRanking = new NaturalRanking(NaNStrategy.FIXED,
TiesStrategy.AVERAGE);
}
示例3: MannWhitneyUTestImpl
/**
* Create a test instance using where NaN's are left in place and ties get
* the average of applicable ranks. Use this unless you are very sure of
* what you are doing.
*/
public MannWhitneyUTestImpl() {
naturalRanking = new NaturalRanking(NaNStrategy.FIXED,
TiesStrategy.AVERAGE);
}