Structure

MLDataTable.Row

A row of untyped values in a data table.

Declaration

struct Row

Topics

Instance Properties

var indices: DefaultIndices<MLDataTable.Row>

The indices that are valid for subscripting the collection, in ascending order.

var lazy: LazySequence<MLDataTable.Row>

A sequence containing the same elements as this sequence, but on which some operations, such as map and filter, are implemented lazily.

var underestimatedCount: Int

A value less than or equal to the number of elements in the collection.

Instance Methods

func allSatisfy(((MLDataTable.Row.Key, MLDataTable.Row.Value)) -> Bool) -> Bool

Returns a Boolean value indicating whether every element of a sequence satisfies a given predicate.

func compactMap<ElementOfResult>(((MLDataTable.Row.Key, MLDataTable.Row.Value)) -> ElementOfResult?) -> [ElementOfResult]

Returns an array containing the non-nil results of calling the given transformation with each element of this sequence.

func contains(where: ((MLDataTable.Row.Key, MLDataTable.Row.Value)) -> Bool) -> Bool

Returns a Boolean value indicating whether the sequence contains an element that satisfies the given predicate.

func distance(from: Int, to: Int) -> Int

Returns the distance between two indices.

func drop(while: ((MLDataTable.Row.Key, MLDataTable.Row.Value)) -> Bool) -> Slice<MLDataTable.Row>

Returns a subsequence by skipping elements while predicate returns true and returning the remaining elements.

func dropFirst(Int) -> Slice<MLDataTable.Row>

Returns a subsequence containing all but the given number of initial elements.

func dropLast(Int) -> Slice<MLDataTable.Row>

Returns a subsequence containing all but the specified number of final elements.

func elementsEqual<OtherSequence>(OtherSequence, by: ((MLDataTable.Row.Key, MLDataTable.Row.Value), OtherSequence.Element) -> Bool) -> Bool

Returns a Boolean value indicating whether this sequence and another sequence contain equivalent elements in the same order, using the given predicate as the equivalence test.

func enumerated() -> EnumeratedSequence<MLDataTable.Row>

Returns a sequence of pairs (n, x), where n represents a consecutive integer starting at zero and x represents an element of the sequence.

func filter(((MLDataTable.Row.Key, MLDataTable.Row.Value)) -> Bool) -> [(MLDataTable.Row.Key, MLDataTable.Row.Value)]

Returns an array containing, in order, the elements of the sequence that satisfy the given predicate.

func firstIndex(where: ((MLDataTable.Row.Key, MLDataTable.Row.Value)) -> Bool) -> Int?

Returns the first index in which an element of the collection satisfies the given predicate.

func flatMap<SegmentOfResult>(((MLDataTable.Row.Key, MLDataTable.Row.Value)) -> SegmentOfResult) -> [SegmentOfResult.Element]

Returns an array containing the concatenated results of calling the given transformation with each element of this sequence.

func forEach(((MLDataTable.Row.Key, MLDataTable.Row.Value)) -> Void)

Calls the given closure on each element in the sequence in the same order as a for-in loop.

func formIndex(inout Int, offsetBy: Int)

Offsets the given index by the specified distance.

func formIndex(inout Int, offsetBy: Int, limitedBy: Int) -> Bool

Offsets the given index by the specified distance, or so that it equals the given limiting index.

func formIndex(after: inout Int)

Replaces the given index with its successor.

func index(Int, offsetBy: Int) -> Int

Returns an index that is the specified distance from the given index.

func index(Int, offsetBy: Int, limitedBy: Int) -> Int?

Returns an index that is the specified distance from the given index, unless that distance is beyond a given limiting index.

func index(where: ((MLDataTable.Row.Key, MLDataTable.Row.Value)) -> Bool) -> Int?

Returns the first index in which an element of the collection satisfies the given predicate.

Deprecated
func lexicographicallyPrecedes<OtherSequence>(OtherSequence, by: ((MLDataTable.Row.Key, MLDataTable.Row.Value), (MLDataTable.Row.Key, MLDataTable.Row.Value)) -> Bool) -> Bool

Returns a Boolean value indicating whether the sequence precedes another sequence in a lexicographical (dictionary) ordering, using the given predicate to compare elements.

func makeIterator() -> IndexingIterator<MLDataTable.Row>

Returns an iterator over the elements of the collection.

func map<T>(((MLDataTable.Row.Key, MLDataTable.Row.Value)) -> T) -> [T]

Returns an array containing the results of mapping the given closure over the sequence’s elements.

func prefix(Int) -> Slice<MLDataTable.Row>

Returns a subsequence, up to the specified maximum length, containing the initial elements of the collection.

func prefix(through: Int) -> Slice<MLDataTable.Row>

Returns a subsequence from the start of the collection through the specified position.

func prefix(upTo: Int) -> Slice<MLDataTable.Row>

Returns a subsequence from the start of the collection up to, but not including, the specified position.

func prefix(while: ((MLDataTable.Row.Key, MLDataTable.Row.Value)) -> Bool) -> Slice<MLDataTable.Row>

Returns a subsequence containing the initial elements until predicate returns false and skipping the remaining elements.

func randomElement<T>(using: inout T) -> (MLDataTable.Row.Key, MLDataTable.Row.Value)?

Returns a random element of the collection, using the given generator as a source for randomness.

func reduce<Result>(Result, (Result, (MLDataTable.Row.Key, MLDataTable.Row.Value)) -> Result) -> Result

Returns the result of combining the elements of the sequence using the given closure.

func reduce<Result>(into: Result, (inout Result, (MLDataTable.Row.Key, MLDataTable.Row.Value)) -> ()) -> Result

Returns the result of combining the elements of the sequence using the given closure.

func reversed() -> [(MLDataTable.Row.Key, MLDataTable.Row.Value)]

Returns an array containing the elements of this sequence in reverse order.

func shuffled() -> [(MLDataTable.Row.Key, MLDataTable.Row.Value)]

Returns the elements of the sequence, shuffled.

func shuffled<T>(using: inout T) -> [(MLDataTable.Row.Key, MLDataTable.Row.Value)]

Returns the elements of the sequence, shuffled using the given generator as a source for randomness.

func split(maxSplits: Int, omittingEmptySubsequences: Bool, whereSeparator: ((MLDataTable.Row.Key, MLDataTable.Row.Value)) -> Bool) -> [Slice<MLDataTable.Row>]

Returns the longest possible subsequences of the collection, in order, that don’t contain elements satisfying the given predicate.

func starts<PossiblePrefix>(with: PossiblePrefix, by: ((MLDataTable.Row.Key, MLDataTable.Row.Value), PossiblePrefix.Element) -> Bool) -> Bool

Returns a Boolean value indicating whether the initial elements of the sequence are equivalent to the elements in another sequence, using the given predicate as the equivalence test.

func suffix(Int) -> Slice<MLDataTable.Row>

Returns a subsequence, up to the given maximum length, containing the final elements of the collection.

func suffix(from: Int) -> Slice<MLDataTable.Row>

Returns a subsequence from the specified position to the end of the collection.

func withContiguousStorageIfAvailable<R>((UnsafeBufferPointer<(MLDataTable.Row.Key, MLDataTable.Row.Value)>) -> R) -> R?

Call body(p), where p is a pointer to the collection’s contiguous storage. If no such storage exists, it is first created. If the collection does not support an internal representation in a form of contiguous storage, body is not called and nil is returned.

Operator Functions

See Also