Copyright	Copyright (c) 2009-2015, David Sorokin <david.sorokin@gmail.com>
License	BSD3
Maintainer	David Sorokin <david.sorokin@gmail.com>
Stability	experimental
Safe Haskell	Safe-Inferred
Language	Haskell2010

Simulation.Aivika.Statistics

Contents

Simple Statistics
Timing Statistics
Simple Counter
Timing Counter

Description

Tested with: GHC 7.10.1

Represents statistics.

Synopsis

Simple Statistics

data SamplingStats a Source

Describes when the statistics consists of only samples not bound to the simulation time.

Constructors

SamplingStats
Fields samplingStatsCount :: !Int The total number of samples. samplingStatsMin :: !a The minimum value among the samples. samplingStatsMax :: !a The maximum value among the samples. samplingStatsMean :: !Double The average value. samplingStatsMean2 :: !Double The average square value.

Instances

Eq a => Eq (SamplingStats a)
Ord a => Ord (SamplingStats a)
Show a => Show (SamplingStats a)
SamplingData a => Monoid (SamplingStats a)
ResultItemable (ResultValue (SamplingStats Double))
ResultItemable (ResultValue (SamplingStats Int))
ResultComputing m => ResultProvider (m (SamplingStats Int))
ResultComputing m => ResultProvider (m (SamplingStats Double))

class Num a => SamplingData a where Source

Specifies data type from which values we can gather the statistics.

Methods

emptySamplingStats :: SamplingStats a Source

An empty statistics that has no samples.

addSamplingStats :: a -> SamplingStats a -> SamplingStats a Source

Add a new sample to the statistics.

combineSamplingStats :: SamplingStats a -> SamplingStats a -> SamplingStats a Source

Combine two statistics.

Instances

SamplingData Double
SamplingData Int

combineSamplingStatsEither :: SamplingData a => Either a (SamplingStats a) -> SamplingStats a -> SamplingStats a Source

If allows combining statistics more efficiently if we know that the first argument can be a scalar.

samplingStatsVariance :: SamplingStats a -> Double Source

Return the variance.

samplingStatsDeviation :: SamplingStats a -> Double Source

Return the deviation.

samplingStatsSummary :: Show a => SamplingStats a -> Int -> ShowS Source

Show the summary of the statistics using the specified indent.

returnSamplingStats :: SamplingData a => a -> SamplingStats a Source

Return the statistics by a single sample.

listSamplingStats :: SamplingData a => [a] -> SamplingStats a Source

Create the statistics by the specified list of data.

fromIntSamplingStats :: SamplingStats Int -> SamplingStats Double Source

Convert the statistics from integer to double values.

Timing Statistics

data TimingStats a Source

This is the timing statistics where data are bound to the time.

Constructors

TimingStats

Fields

timingStatsCount :: !Int: Return the number of samples.
timingStatsMin :: !a: Return the minimum value.
timingStatsMax :: !a: Return the maximum value.
timingStatsLast :: !a: Return the last value.
timingStatsMinTime :: !Double: Return the time at which the minimum is attained.
timingStatsMaxTime :: !Double: Return the time at which the maximum is attained.
timingStatsStartTime :: !Double: Return the start time of sampling.
timingStatsLastTime :: !Double: Return the last time of sampling.
timingStatsSum :: !Double: Return the sum of values.
timingStatsSum2 :: !Double: Return the sum of square values.

Instances

Eq a => Eq (TimingStats a)
Ord a => Ord (TimingStats a)
(Show a, TimingData a) => Show (TimingStats a)
ResultItemable (ResultValue (TimingStats Double))
ResultItemable (ResultValue (TimingStats Int))
ResultComputing m => ResultProvider (m (TimingStats Int))
ResultComputing m => ResultProvider (m (TimingStats Double))

class Num a => TimingData a where Source

Defines the data type from which values we can gather the timing statistics.

Methods

emptyTimingStats :: TimingStats a Source

An empty statistics that has no samples.

addTimingStats :: Double -> a -> TimingStats a -> TimingStats a Source

Add a sample with the specified time to the statistics.

timingStatsMean :: TimingStats a -> Double Source

Return the average value.

timingStatsMean2 :: TimingStats a -> Double Source

Return the average square value.

timingStatsVariance :: TimingStats a -> Double Source

Return the variance.

Instances

TimingData Double
TimingData Int

timingStatsDeviation :: TimingData a => TimingStats a -> Double Source

Return the deviation.

timingStatsSummary :: (Show a, TimingData a) => TimingStats a -> Int -> ShowS Source

Show the summary of the statistics using the specified indent.

returnTimingStats :: TimingData a => Double -> a -> TimingStats a Source

Return the statistics by single timing data.

fromIntTimingStats :: TimingStats Int -> TimingStats Double Source

Convert the statistics from integer to double values.

normTimingStats :: TimingData a => Int -> TimingStats a -> SamplingStats a Source

Convert the statistics to its normalised sampling-based representation, where the first argument specifies the number of pseudo-samples.

Simple Counter

data SamplingCounter a Source

A counter for which the statistics is collected too.

Constructors

SamplingCounter
Fields samplingCounterValue :: a The counter value. samplingCounterStats :: SamplingStats a The counter statistics.

Instances

Eq a => Eq (SamplingCounter a)
Ord a => Ord (SamplingCounter a)
Show a => Show (SamplingCounter a)
ResultComputing m => ResultProvider (m (SamplingCounter Int))
ResultComputing m => ResultProvider (m (SamplingCounter Double))

emptySamplingCounter :: SamplingData a => SamplingCounter a Source

An empty counter.

incSamplingCounter :: SamplingData a => a -> SamplingCounter a -> SamplingCounter a Source

Increase the counter.

decSamplingCounter :: SamplingData a => a -> SamplingCounter a -> SamplingCounter a Source

Decrease the counter.

setSamplingCounter :: SamplingData a => a -> SamplingCounter a -> SamplingCounter a Source

Set a new value for the counter.

returnSamplingCounter :: SamplingData a => a -> SamplingCounter a Source

Create a counter with the specified initial value.

Timing Counter

data TimingCounter a Source

A counter for which the timing statistics is collected too.

Constructors

TimingCounter
Fields timingCounterValue :: a The counter value. timingCounterStats :: TimingStats a The counter statistics.

Instances

Eq a => Eq (TimingCounter a)
Ord a => Ord (TimingCounter a)
(Show a, TimingData a) => Show (TimingCounter a)
ResultComputing m => ResultProvider (m (TimingCounter Int))
ResultComputing m => ResultProvider (m (TimingCounter Double))

emptyTimingCounter :: TimingData a => TimingCounter a Source

An empty counter.

incTimingCounter :: TimingData a => Double -> a -> TimingCounter a -> TimingCounter a Source

Increase the counter at the specified time.

decTimingCounter :: TimingData a => Double -> a -> TimingCounter a -> TimingCounter a Source

Decrease the counter at the specified time.

setTimingCounter :: TimingData a => Double -> a -> TimingCounter a -> TimingCounter a Source

Set a new value for the counter at the specified time.

returnTimingCounter :: TimingData a => Double -> a -> TimingCounter a Source

Create a timing counter with the specified initial value at the given time.