Class MongoEnumerable

Namespace

MongoDB.Driver.Linq

Assembly

MongoDB.Driver.dll

Enumerable Extensions for MongoDB.

public static class MongoEnumerable

Inheritance

object

MongoEnumerable

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Methods

AllElements<TSource>(IEnumerable<TSource>)

Represents all elements in an array (corresponds to the server's "$[]" update operator).

public static TSource AllElements<TSource>(this IEnumerable<TSource> source)

Parameters

source IEnumerable<TSource>

A source of values.

Returns

TSource

Only meant to be used in Update specifications.

Type Parameters

TSource

The type of the elements of source.

AllMatchingElements<TSource>(IEnumerable<TSource>, string)

Represents all matching elements in an array when using an array filter (corresponds to the server's "$[identifier]" update operator).

public static TSource AllMatchingElements<TSource>(this IEnumerable<TSource> source, string identifier)

Parameters

source IEnumerable<TSource>

A source of values.

identifier string

The name of the identifier in the corresponding array filter.

Returns

TSource

Only meant to be used in Update specifications.

Type Parameters

TSource

The type of the elements of source.

BottomN<TSource, TResult>(IEnumerable<TSource>, SortDefinition<TSource>, Func<TSource, TResult>, int)

Returns the bottom n results.

public static IEnumerable<TResult> BottomN<TSource, TResult>(this IEnumerable<TSource> source, SortDefinition<TSource> sortBy, Func<TSource, TResult> selector, int n)

Parameters

source IEnumerable<TSource>

The source.

sortBy SortDefinition<TSource>

The sort order.

selector Func<TSource, TResult>

The selector.

n int

The number of results to return.

Returns

IEnumerable<TResult>

The bottom n results.

Type Parameters

TSource

The source type.

TResult

The result type.

BottomN<TSource, TKey, TResult>(IEnumerable<TSource>, SortDefinition<TSource>, Func<TSource, TResult>, TKey, Func<TKey, int>)

Returns the bottom n results.

public static IEnumerable<TResult> BottomN<TSource, TKey, TResult>(this IEnumerable<TSource> source, SortDefinition<TSource> sortBy, Func<TSource, TResult> selector, TKey key, Func<TKey, int> n)

Parameters

source IEnumerable<TSource>

The source.

sortBy SortDefinition<TSource>

The sort order.

selector Func<TSource, TResult>

The selector.

key TKey

The key (needed to infer the key type and to determine the key serializer).

n Func<TKey, int>

The number of results to return.

Returns

IEnumerable<TResult>

The bottom n results.

Type Parameters

TSource

The source type.

TKey

The key type.

TResult

The result type.

Bottom<TSource, TResult>(IEnumerable<TSource>, SortDefinition<TSource>, Func<TSource, TResult>)

Returns the bottom result.

public static TResult Bottom<TSource, TResult>(this IEnumerable<TSource> source, SortDefinition<TSource> sortBy, Func<TSource, TResult> selector)

Parameters

source IEnumerable<TSource>

The source.

sortBy SortDefinition<TSource>

The sort order.

selector Func<TSource, TResult>

The selector.

Returns

TResult

The bottom result.

Type Parameters

TSource

The source type.

TResult

The result type.

FirstMatchingElement<TSource>(IEnumerable<TSource>)

Represents the first matching element in an array used in a query (corresponds to the server's "$" update operator).

public static TSource FirstMatchingElement<TSource>(this IEnumerable<TSource> source)

Parameters

source IEnumerable<TSource>

A source of values.

Returns

TSource

Only meant to be used in Update specifications.

Type Parameters

TSource

The type of the elements of source.

FirstN<TSource, TResult>(IEnumerable<TSource>, Func<TSource, TResult>, int)

Returns the first n results.

public static IEnumerable<TResult> FirstN<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector, int n)

Parameters

source IEnumerable<TSource>

The source.

selector Func<TSource, TResult>

The selector.

n int

The number of results to return.

Returns

IEnumerable<TResult>

The first n results.

Type Parameters

TSource

The source type.

TResult

The result type.

FirstN<TSource, TKey, TResult>(IEnumerable<TSource>, Func<TSource, TResult>, TKey, Func<TKey, int>)

Returns the first n results.

public static IEnumerable<TResult> FirstN<TSource, TKey, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector, TKey key, Func<TKey, int> n)

Parameters

source IEnumerable<TSource>

The source.

selector Func<TSource, TResult>

The selector.

key TKey

The key (needed to infer the key type and to determine the key serializer).

n Func<TKey, int>

The number of results to return.

Returns

IEnumerable<TResult>

The first n results.

Type Parameters

TSource

The source type.

TKey

The key type.

TResult

The result type.

LastN<TSource, TResult>(IEnumerable<TSource>, Func<TSource, TResult>, int)

Returns the last n results.

public static IEnumerable<TResult> LastN<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector, int n)

Parameters

source IEnumerable<TSource>

The source.

selector Func<TSource, TResult>

The selector.

n int

The number of results to return.

Returns

IEnumerable<TResult>

The last n results.

Type Parameters

TSource

The source type.

TResult

The result type.

LastN<TSource, TKey, TResult>(IEnumerable<TSource>, Func<TSource, TResult>, TKey, Func<TKey, int>)

Returns the last n results.

public static IEnumerable<TResult> LastN<TSource, TKey, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector, TKey key, Func<TKey, int> n)

Parameters

source IEnumerable<TSource>

The source.

selector Func<TSource, TResult>

The selector.

key TKey

The key (needed to infer the key type and to determine the key serializer).

n Func<TKey, int>

The number of results to return.

Returns

IEnumerable<TResult>

The last n results.

Type Parameters

TSource

The source type.

TKey

The key type.

TResult

The result type.

MaxN<TSource, TResult>(IEnumerable<TSource>, Func<TSource, TResult>, int)

Returns the max n results.

public static IEnumerable<TResult> MaxN<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector, int n)

Parameters

source IEnumerable<TSource>

The source.

selector Func<TSource, TResult>

The selector.

n int

The number of results to return.

Returns

IEnumerable<TResult>

The max n results.

Type Parameters

TSource

The source type.

TResult

The result type.

MaxN<TSource, TKey, TResult>(IEnumerable<TSource>, Func<TSource, TResult>, TKey, Func<TKey, int>)

Returns the max n results.

public static IEnumerable<TResult> MaxN<TSource, TKey, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector, TKey key, Func<TKey, int> n)

Parameters

source IEnumerable<TSource>

The source.

selector Func<TSource, TResult>

The selector.

key TKey

The key (needed to infer the key type and to determine the key serializer).

n Func<TKey, int>

The number of results to return.

Returns

IEnumerable<TResult>

The max n results.

Type Parameters

TSource

The source type.

TKey

The key type.

TResult

The result type.

MinN<TSource, TResult>(IEnumerable<TSource>, Func<TSource, TResult>, int)

Returns the min n results.

public static IEnumerable<TResult> MinN<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector, int n)

Parameters

source IEnumerable<TSource>

The source.

selector Func<TSource, TResult>

The selector.

n int

The number of results to return.

Returns

IEnumerable<TResult>

The min n results.

Type Parameters

TSource

The source type.

TResult

The result type.

MinN<TSource, TKey, TResult>(IEnumerable<TSource>, Func<TSource, TResult>, TKey, Func<TKey, int>)

Returns the min n results.

public static IEnumerable<TResult> MinN<TSource, TKey, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector, TKey key, Func<TKey, int> n)

Parameters

source IEnumerable<TSource>

The source.

selector Func<TSource, TResult>

The selector.

key TKey

The key (needed to infer the key type and to determine the key serializer).

n Func<TKey, int>

The number of results to return.

Returns

IEnumerable<TResult>

The min n results.

Type Parameters

TSource

The source type.

TKey

The key type.

TResult

The result type.

StandardDeviationPopulation(IEnumerable<decimal>)

Computes the population standard deviation of a sequence of values.

public static decimal StandardDeviationPopulation(this IEnumerable<decimal> source)

Parameters

source IEnumerable<decimal>

A sequence of values to calculate the population standard deviation of.

Returns

decimal

The population standard deviation of the sequence of values.

StandardDeviationPopulation(IEnumerable<double>)

Computes the population standard deviation of a sequence of values.

public static double StandardDeviationPopulation(this IEnumerable<double> source)

Parameters

source IEnumerable<double>

A sequence of values to calculate the population standard deviation of.

Returns

double

The population standard deviation of the sequence of values.

StandardDeviationPopulation(IEnumerable<int>)

Computes the population standard deviation of a sequence of values.

public static double StandardDeviationPopulation(this IEnumerable<int> source)

Parameters

source IEnumerable<int>

A sequence of values to calculate the population standard deviation of.

Returns

double

The population standard deviation of the sequence of values.

StandardDeviationPopulation(IEnumerable<long>)

Computes the population standard deviation of a sequence of values.

public static double StandardDeviationPopulation(this IEnumerable<long> source)

Parameters

source IEnumerable<long>

A sequence of values to calculate the population standard deviation of.

Returns

double

The population standard deviation of the sequence of values.

StandardDeviationPopulation(IEnumerable<decimal?>)

Computes the population standard deviation of a sequence of values.

public static decimal? StandardDeviationPopulation(this IEnumerable<decimal?> source)

Parameters

source IEnumerable<decimal?>

A sequence of values to calculate the population standard deviation of.

Returns

decimal?

The population standard deviation of the sequence of values.

StandardDeviationPopulation(IEnumerable<double?>)

Computes the population standard deviation of a sequence of values.

public static double? StandardDeviationPopulation(this IEnumerable<double?> source)

Parameters

source IEnumerable<double?>

A sequence of values to calculate the population standard deviation of.

Returns

double?

The population standard deviation of the sequence of values.

StandardDeviationPopulation(IEnumerable<int?>)

Computes the population standard deviation of a sequence of values.

public static double? StandardDeviationPopulation(this IEnumerable<int?> source)

Parameters

source IEnumerable<int?>

A sequence of values to calculate the population standard deviation of.

Returns

double?

The population standard deviation of the sequence of values.

StandardDeviationPopulation(IEnumerable<long?>)

Computes the population standard deviation of a sequence of values.

public static double? StandardDeviationPopulation(this IEnumerable<long?> source)

Parameters

source IEnumerable<long?>

A sequence of values to calculate the population standard deviation of.

Returns

double?

The population standard deviation of the sequence of values.

StandardDeviationPopulation(IEnumerable<float?>)

Computes the population standard deviation of a sequence of values.

public static float? StandardDeviationPopulation(this IEnumerable<float?> source)

Parameters

source IEnumerable<float?>

A sequence of values to calculate the population standard deviation of.

Returns

float?

The population standard deviation of the sequence of values.

StandardDeviationPopulation(IEnumerable<float>)

Computes the population standard deviation of a sequence of values.

public static float StandardDeviationPopulation(this IEnumerable<float> source)

Parameters

source IEnumerable<float>

A sequence of values to calculate the population standard deviation of.

Returns

float

The population standard deviation of the sequence of values.

StandardDeviationPopulation<TSource>(IEnumerable<TSource>, Func<TSource, decimal>)

Computes the population standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static decimal StandardDeviationPopulation<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, decimal>

A transform function to apply to each element.

Returns

decimal

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationPopulation<TSource>(IEnumerable<TSource>, Func<TSource, double>)

Computes the population standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static double StandardDeviationPopulation<TSource>(this IEnumerable<TSource> source, Func<TSource, double> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, double>

A transform function to apply to each element.

Returns

double

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationPopulation<TSource>(IEnumerable<TSource>, Func<TSource, int>)

Computes the population standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static double StandardDeviationPopulation<TSource>(this IEnumerable<TSource> source, Func<TSource, int> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, int>

A transform function to apply to each element.

Returns

double

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationPopulation<TSource>(IEnumerable<TSource>, Func<TSource, long>)

Computes the population standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static double StandardDeviationPopulation<TSource>(this IEnumerable<TSource> source, Func<TSource, long> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, long>

A transform function to apply to each element.

Returns

double

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationPopulation<TSource>(IEnumerable<TSource>, Func<TSource, decimal?>)

Computes the population standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static decimal? StandardDeviationPopulation<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal?> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, decimal?>

A transform function to apply to each element.

Returns

decimal?

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationPopulation<TSource>(IEnumerable<TSource>, Func<TSource, double?>)

Computes the population standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static double? StandardDeviationPopulation<TSource>(this IEnumerable<TSource> source, Func<TSource, double?> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, double?>

A transform function to apply to each element.

Returns

double?

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationPopulation<TSource>(IEnumerable<TSource>, Func<TSource, int?>)

Computes the population standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static double? StandardDeviationPopulation<TSource>(this IEnumerable<TSource> source, Func<TSource, int?> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, int?>

A transform function to apply to each element.

Returns

double?

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationPopulation<TSource>(IEnumerable<TSource>, Func<TSource, long?>)

Computes the population standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static double? StandardDeviationPopulation<TSource>(this IEnumerable<TSource> source, Func<TSource, long?> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, long?>

A transform function to apply to each element.

Returns

double?

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationPopulation<TSource>(IEnumerable<TSource>, Func<TSource, float?>)

Computes the population standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static float? StandardDeviationPopulation<TSource>(this IEnumerable<TSource> source, Func<TSource, float?> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, float?>

A transform function to apply to each element.

Returns

float?

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationPopulation<TSource>(IEnumerable<TSource>, Func<TSource, float>)

Computes the population standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static float StandardDeviationPopulation<TSource>(this IEnumerable<TSource> source, Func<TSource, float> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, float>

A transform function to apply to each element.

Returns

float

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationSample(IEnumerable<decimal>)

Computes the sample standard deviation of a sequence of values.

public static decimal StandardDeviationSample(this IEnumerable<decimal> source)

Parameters

source IEnumerable<decimal>

A sequence of values to calculate the population standard deviation of.

Returns

decimal

The population standard deviation of the sequence of values.

StandardDeviationSample(IEnumerable<double>)

Computes the sample standard deviation of a sequence of values.

public static double StandardDeviationSample(this IEnumerable<double> source)

Parameters

source IEnumerable<double>

A sequence of values to calculate the population standard deviation of.

Returns

double

The population standard deviation of the sequence of values.

StandardDeviationSample(IEnumerable<int>)

Computes the sample standard deviation of a sequence of values.

public static double StandardDeviationSample(this IEnumerable<int> source)

Parameters

source IEnumerable<int>

A sequence of values to calculate the population standard deviation of.

Returns

double

The population standard deviation of the sequence of values.

StandardDeviationSample(IEnumerable<long>)

Computes the sample standard deviation of a sequence of values.

public static double StandardDeviationSample(this IEnumerable<long> source)

Parameters

source IEnumerable<long>

A sequence of values to calculate the population standard deviation of.

Returns

double

The population standard deviation of the sequence of values.

StandardDeviationSample(IEnumerable<decimal?>)

Computes the sample standard deviation of a sequence of values.

public static decimal? StandardDeviationSample(this IEnumerable<decimal?> source)

Parameters

source IEnumerable<decimal?>

A sequence of values to calculate the population standard deviation of.

Returns

decimal?

The population standard deviation of the sequence of values.

StandardDeviationSample(IEnumerable<double?>)

Computes the sample standard deviation of a sequence of values.

public static double? StandardDeviationSample(this IEnumerable<double?> source)

Parameters

source IEnumerable<double?>

A sequence of values to calculate the population standard deviation of.

Returns

double?

The population standard deviation of the sequence of values.

StandardDeviationSample(IEnumerable<int?>)

Computes the sample standard deviation of a sequence of values.

public static double? StandardDeviationSample(this IEnumerable<int?> source)

Parameters

source IEnumerable<int?>

A sequence of values to calculate the population standard deviation of.

Returns

double?

The population standard deviation of the sequence of values.

StandardDeviationSample(IEnumerable<long?>)

Computes the sample standard deviation of a sequence of values.

public static double? StandardDeviationSample(this IEnumerable<long?> source)

Parameters

source IEnumerable<long?>

A sequence of values to calculate the population standard deviation of.

Returns

double?

The population standard deviation of the sequence of values.

StandardDeviationSample(IEnumerable<float?>)

Computes the sample standard deviation of a sequence of values.

public static float? StandardDeviationSample(this IEnumerable<float?> source)

Parameters

source IEnumerable<float?>

A sequence of values to calculate the population standard deviation of.

Returns

float?

The population standard deviation of the sequence of values.

StandardDeviationSample(IEnumerable<float>)

Computes the sample standard deviation of a sequence of values.

public static float StandardDeviationSample(this IEnumerable<float> source)

Parameters

source IEnumerable<float>

A sequence of values to calculate the population standard deviation of.

Returns

float

The population standard deviation of the sequence of values.

StandardDeviationSample<TSource>(IEnumerable<TSource>, Func<TSource, decimal>)

Computes the sample standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static decimal StandardDeviationSample<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, decimal>

A transform function to apply to each element.

Returns

decimal

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationSample<TSource>(IEnumerable<TSource>, Func<TSource, double>)

Computes the sample standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static double StandardDeviationSample<TSource>(this IEnumerable<TSource> source, Func<TSource, double> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, double>

A transform function to apply to each element.

Returns

double

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationSample<TSource>(IEnumerable<TSource>, Func<TSource, int>)

Computes the sample standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static double StandardDeviationSample<TSource>(this IEnumerable<TSource> source, Func<TSource, int> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, int>

A transform function to apply to each element.

Returns

double

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationSample<TSource>(IEnumerable<TSource>, Func<TSource, long>)

Computes the sample standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static double StandardDeviationSample<TSource>(this IEnumerable<TSource> source, Func<TSource, long> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, long>

A transform function to apply to each element.

Returns

double

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationSample<TSource>(IEnumerable<TSource>, Func<TSource, decimal?>)

Computes the sample standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static decimal? StandardDeviationSample<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal?> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, decimal?>

A transform function to apply to each element.

Returns

decimal?

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationSample<TSource>(IEnumerable<TSource>, Func<TSource, double?>)

Computes the sample standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static double? StandardDeviationSample<TSource>(this IEnumerable<TSource> source, Func<TSource, double?> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, double?>

A transform function to apply to each element.

Returns

double?

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationSample<TSource>(IEnumerable<TSource>, Func<TSource, int?>)

Computes the sample standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static double? StandardDeviationSample<TSource>(this IEnumerable<TSource> source, Func<TSource, int?> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, int?>

A transform function to apply to each element.

Returns

double?

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationSample<TSource>(IEnumerable<TSource>, Func<TSource, long?>)

Computes the sample standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static double? StandardDeviationSample<TSource>(this IEnumerable<TSource> source, Func<TSource, long?> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, long?>

A transform function to apply to each element.

Returns

double?

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationSample<TSource>(IEnumerable<TSource>, Func<TSource, float?>)

Computes the sample standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static float? StandardDeviationSample<TSource>(this IEnumerable<TSource> source, Func<TSource, float?> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, float?>

A transform function to apply to each element.

Returns

float?

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

StandardDeviationSample<TSource>(IEnumerable<TSource>, Func<TSource, float>)

Computes the sample standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public static float StandardDeviationSample<TSource>(this IEnumerable<TSource> source, Func<TSource, float> selector)

Parameters

source IEnumerable<TSource>

A sequence of values to calculate the population standard deviation of.

selector Func<TSource, float>

A transform function to apply to each element.

Returns

float

The population standard deviation of the sequence of values.

Type Parameters

TSource

The type of the elements of source.

TopN<TSource, TResult>(IEnumerable<TSource>, SortDefinition<TSource>, Func<TSource, TResult>, int)

Returns the top n results.

public static IEnumerable<TResult> TopN<TSource, TResult>(this IEnumerable<TSource> source, SortDefinition<TSource> sortBy, Func<TSource, TResult> selector, int n)

Parameters

source IEnumerable<TSource>

The source.

sortBy SortDefinition<TSource>

The sort order.

selector Func<TSource, TResult>

The selector.

n int

The number of results to return.

Returns

IEnumerable<TResult>

The top n results.

Type Parameters

TSource

The source type.

TResult

The result type.

TopN<TSource, TKey, TResult>(IEnumerable<TSource>, SortDefinition<TSource>, Func<TSource, TResult>, TKey, Func<TKey, int>)

Returns the top n results.

public static IEnumerable<TResult> TopN<TSource, TKey, TResult>(this IEnumerable<TSource> source, SortDefinition<TSource> sortBy, Func<TSource, TResult> selector, TKey key, Func<TKey, int> n)

Parameters

source IEnumerable<TSource>

The source.

sortBy SortDefinition<TSource>

The sort order.

selector Func<TSource, TResult>

The selector.

key TKey

The key (needed to infer the key type and to determine the key serializer).

n Func<TKey, int>

The number of results to return.

Returns

IEnumerable<TResult>

The top n results.

Type Parameters

TSource

The source type.

TKey

The key type.

TResult

The result type.

Top<TSource, TResult>(IEnumerable<TSource>, SortDefinition<TSource>, Func<TSource, TResult>)

Returns the top n results.

public static TResult Top<TSource, TResult>(this IEnumerable<TSource> source, SortDefinition<TSource> sortBy, Func<TSource, TResult> selector)

Parameters

source IEnumerable<TSource>

The source.

sortBy SortDefinition<TSource>

The sort order.

selector Func<TSource, TResult>

The selector.

Returns

TResult

The top n results.

Type Parameters

TSource

The source type.

TResult

The result type.

Where<TSource>(IEnumerable<TSource>, Func<TSource, bool>, int)

Filters a sequence of values based on a predicate and limits the number of results.

public static IEnumerable<TSource> Where<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate, int limit)

Parameters

source IEnumerable<TSource>

The source values.

predicate Func<TSource, bool>

The predicate.

limit int

The limit.

Returns

IEnumerable<TSource>

The filtered results.

Type Parameters

TSource

The type of the elements of source.