Frequency (FSharp.Stats) | FSharp.Stats

FSharp.Stats

Frequency Module

Namespace: FSharp.Stats.Distributions
Assembly: FSharp.Stats.dll

Represents a histogram (map from values to integer frequencies).

Functions and values

Function or value	Description
`add equalBandwidthOrNominal histA histB` Full Usage: `add equalBandwidthOrNominal histA histB` Parameters: equalBandwidthOrNominal : `bool` - Is the binwidth equal for both frequencies? For nominal data set to true. histA : `Map<'a, ^value>` - Frequency map A histB : `Map<'a, ^value>` - Frequency map B Returns: `Map<'a, ^value>` New frequency map that results from merged maps histA and histB. Values from keys that are present in both maps are handled by f Modifiers: inline Type parameters: 'a, ^value	Merges two histograms into a single histogram. If a key exists in both histograms, the value from histA is added to the value of histB. When applied to continuous data the bandwidths must be equal! equalBandwidthOrNominal : `bool` Is the binwidth equal for both frequencies? For nominal data set to true. histA : `Map<'a, ^value>` Frequency map A histB : `Map<'a, ^value>` Frequency map B Returns: `Map<'a, ^value>` New frequency map that results from merged maps histA and histB. Values from keys that are present in both maps are handled by f
`average hist` Full Usage: `average hist` Parameters: hist : `Map<'a, int>` - Returns: `float`	Returns the average of the frequencies in the map hist : `Map<'a, int>` Returns: `float` Example
`create bandwidth data` Full Usage: `create bandwidth data` Parameters: bandwidth : `float` - data : `float seq` - Returns: `Map<float, int>`	Creates probability mass function (histogram) bandwidth : `float` data : `float seq` Returns: `Map<float, int>` Example
`createGeneric list` Full Usage: `createGeneric list` Parameters: list : `'a list` - Returns: `Map<'a, int>`	Given the list [a,b,a,c,b,b], produce a map {a:2, b:3, c:1} which contains the count of each unique item in the list list : `'a list` Returns: `Map<'a, int>` Example
`frequencies hist` Full Usage: `frequencies hist` Parameters: hist : `Map<'a, int>` - Returns: `int seq`	Gets an unsorted sequence of frequencies hist : `Map<'a, int>` Returns: `int seq` Example
`frequencyAt hist x` Full Usage: `frequencyAt hist x` Parameters: hist : `Map<'a, int>` - x : `'a` - Returns: `int`	Gets the frequency associated with the value x hist : `Map<'a, int>` x : `'a` Returns: `int` Example
`getZip hist` Full Usage: `getZip hist` Parameters: hist : `Map<'a, int>` - Returns: `('a * int) seq`	Returns tuple of (sorted value sequence, frequence sequence) hist : `Map<'a, int>` Returns: `('a * int) seq` Example
`isSubset histA histB` Full Usage: `isSubset histA histB` Parameters: histA : `Map<float, int>` - histB : `Map<float, int>` - Returns: `bool`	Checks whether the values in this histogram A are a subset of the values in the histogram B histA : `Map<float, int>` histB : `Map<float, int>` Returns: `bool` Example
`maxLike hist` Full Usage: `maxLike hist` Parameters: hist : `Map<'a, int>` - Returns: `int`	Gets the largest frequency in the map. hist : `Map<'a, int>` Returns: `int` Example
`merge equalBandwidthOrNominal histA histB` Full Usage: `merge equalBandwidthOrNominal histA histB` Parameters: equalBandwidthOrNominal : `bool` - Is the binwidth equal for both frequencies? For nominal data set to true. histA : `Map<'a, 'value>` - Frequency map A histB : `Map<'a, 'value>` - Frequency map B Returns: `Map<'a, 'value>` New frequency map that results from merged maps histA and histB.	Merges two histograms into a single histogram. If a key exists in both histograms, the value in histA is superseded by the value in histB. When applied to continuous data the bandwidths must be equal!This function is not commutative! (merge a b) is not equal to (merge b a) equalBandwidthOrNominal : `bool` Is the binwidth equal for both frequencies? For nominal data set to true. histA : `Map<'a, 'value>` Frequency map A histB : `Map<'a, 'value>` Frequency map B Returns: `Map<'a, 'value>` New frequency map that results from merged maps histA and histB.
`mergeBy equalBandwidthOrNominal f histA histB` Full Usage: `mergeBy equalBandwidthOrNominal f histA histB` Parameters: equalBandwidthOrNominal : `bool` - Is the binwidth equal for both frequencies? For nominal data set to true. f : `'value -> 'value -> 'value` - Function to transform values if key is present in both histograms. `mapA-value → mapB-value → newValue` histA : `Map<'a, 'value>` - Frequency map A histB : `Map<'a, 'value>` - Frequency map B Returns: `Map<'a, 'value>` New frequency map that results from merged maps mapA and mapB. Values from keys that are present in both maps are handled by f	Merges two histograms into a single histogram. If a key exists in both maps, the value is determined by f with the first value being from mapA and the second originating from mapB. When applied to continuous data the bandwidths must be equal!This function is not commutative! (mergeBy f a b) is not equal to (mergeBy f b a) equalBandwidthOrNominal : `bool` Is the binwidth equal for both frequencies? For nominal data set to true. f : `'value -> 'value -> 'value` Function to transform values if key is present in both histograms. `mapA-value → mapB-value → newValue` histA : `Map<'a, 'value>` Frequency map A histB : `Map<'a, 'value>` Frequency map B Returns: `Map<'a, 'value>` New frequency map that results from merged maps mapA and mapB. Values from keys that are present in both maps are handled by f
`subtract equalBandwidthOrNominal histA histB` Full Usage: `subtract equalBandwidthOrNominal histA histB` Parameters: equalBandwidthOrNominal : `bool` - Is the binwidth equal for both frequencies? For nominal data set to true. histA : `Map<'a, ^value>` - Frequency map A histB : `Map<'a, ^value>` - Frequency map B Returns: `Map<'a, ^value>` Modifiers: inline Type parameters: 'a, ^value	Merges two histograms into a single histogram. If a key exists in both histograms, the value from histB is subtracted from the value of histA. When applied to continuous data the bandwidths must be equal!This function is not commutative! (subtract a b) is not equal to (subtract b a) equalBandwidthOrNominal : `bool` Is the binwidth equal for both frequencies? For nominal data set to true. histA : `Map<'a, ^value>` Frequency map A histB : `Map<'a, ^value>` Frequency map B Returns: `Map<'a, ^value>`
`sum hist` Full Usage: `sum hist` Parameters: hist : `Map<'a, int>` - Returns: `int`	Returns the total of the frequencies in the map hist : `Map<'a, int>` Returns: `int` Example