| /external/chromium-trace/catapult/dashboard/dashboard/ |
| math_utils.py | 28 def Variance(values):
29 """Returns the population variance, or NaN if the input is empty."""
40 return math.sqrt(Variance(values))
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| /external/webrtc/webrtc/test/ |
| statistics.cc | 31 double Statistics::Variance() const {
38 return sqrt(Variance());
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| /external/chromium-trace/catapult/telemetry/telemetry/value/ |
| list_of_scalar_values.py | 13 def Variance(sample):
14 """ Compute the population variance.
32 return math.sqrt(Variance(sample))
42 list_of_variances: a list of numbers, the i-th element is the variance of
44 Variance(sample) to get the variance of the i-th sample.
53 variance = list_of_variances[i] if list_of_variances else Variance(l)
54 pooled_variance += k * variance
102 def variance(self) member in class:ListOfScalarValues
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| /art/runtime/base/ |
| histogram-inl.h | 143 template <class Value> inline double Histogram<Value>::Variance() const {
145 // Using algorithms for calculating variance over a population:
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| /external/apache-commons-math/src/main/java/org/apache/commons/math/stat/descriptive/moment/ |
| Variance.java | 27 * Computes the variance of the available values. By default, the unbiased
28 * "sample variance" definitional formula is used:
30 * variance = sum((x_i - mean)^2) / (n - 1) </p>
38 * <li> The <code>getResult</code> method computes the variance using
46 * Chan, Golub, Levesque, <i>Algorithms for Computing the Sample Variance</i>,
54 * The "population variance" ( sum((x_i - mean)^2) / n ) can also
68 public class Variance extends AbstractStorelessUnivariateStatistic implements Serializable, WeightedEvaluation {
73 /** SecondMoment is used in incremental calculation of Variance*/
77 * Boolean test to determine if this Variance should also increment
78 * the second moment, this evaluates to false when this Variance i
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| /external/webrtc/webrtc/modules/audio_coding/test/ |
| utility.cc | 193 // to calculate variance we have to update
253 int16_t CircularBuffer::Variance(double& var) {
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| /external/apache-commons-math/src/main/java/org/apache/commons/math/stat/descriptive/ |
| SummaryStatistics.java | 26 import org.apache.commons.math.stat.descriptive.moment.Variance;
45 * default implementation for the variance can be overridden by calling
67 /** SecondMoment is used to compute the mean and variance */
91 /** variance of values that have been added */
92 protected Variance variance = new Variance(); field in class:SummaryStatistics
115 /** Variance statistic implementation - can be reset by setter. */
116 private StorelessUnivariateStatistic varianceImpl = variance;
154 // If mean, variance or geomean have been overridden
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