Distribution class

Distribution contains summary statistics for a population of values. It optionally contains a histogram representing the distribution of those values across a set of buckets.

The summary statistics are the count, mean, sum of the squared deviation from the mean, the minimum, and the maximum of the set of population of values. The histogram is based on a sequence of buckets and gives a count of values that fall into each bucket. The boundaries of the buckets are given either explicitly or by formulas for buckets of fixed or exponentially increasing widths.

Although it is not forbidden, it is generally a bad idea to include non-finite values (infinities or NaNs) in the population of values, as this will render the mean and sum_of_squared_deviation fields meaningless.

Inheritance
  • Object
  • GeneratedMessage
  • Distribution
Available extensions

Constructors

Distribution.new({Int64? count, double? mean, double? sumOfSquaredDeviation, Distribution_Range? range, Distribution_BucketOptions? bucketOptions, Iterable<Int64>? bucketCounts, Iterable<Distribution_Exemplar>? exemplars})
factory
Distribution.fromBuffer(List<int> i, [ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY])
factory
Distribution.fromJson(String i, [ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY])
factory

Properties

bucketCounts → PbList<Int64>
The number of values in each bucket of the histogram, as described in bucket_options. If the distribution does not have a histogram, then omit this field. If there is a histogram, then the sum of the values in bucket_counts must equal the value in the count field of the distribution.
no setter
bucketOptions ↔ Distribution_BucketOptions
Defines the histogram bucket boundaries. If the distribution does not contain a histogram, then omit this field.
getter/setter pair
count ↔ Int64
The number of values in the population. Must be non-negative. This value must equal the sum of the values in bucket_counts if a histogram is provided.
getter/setter pair
exemplars → PbList<Distribution_Exemplar>
Must be in increasing order of value field.
no setter
hashCode → int
Calculates a hash code based on the contents of the protobuf.
no setterinherited
info_ → BuilderInfo
no setteroverride
isFrozen → bool
Returns true if this message is marked read-only. Otherwise false.
no setterinherited
mean ↔ double
The arithmetic mean of the values in the population. If count is zero then this field must be zero.
getter/setter pair
range ↔ Distribution_Range
If specified, contains the range of the population values. The field must not be present if the count is zero.
getter/setter pair
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
sumOfSquaredDeviation ↔ double
The sum of squared deviations from the mean of the values in the population. For values x_i this is:
getter/setter pair
unknownFields → UnknownFieldSet
no setterinherited

Methods

addExtension(Extension extension, Object? value) → void
Adds an extension field value to a repeated field.
inherited
check() → void
Throws a StateError if the message has required fields without a value.
inherited
clear() → void
Clears all data that was set in this message.
inherited
clearBucketOptions() → void
clearCount() → void
clearExtension(Extension extension) → void
Clears an extension field and also removes the extension.
inherited
clearField(int tagNumber) → void
Clears the contents of a given field.
inherited
clearMean() → void
clearRange() → void
clearSumOfSquaredDeviation() → void
clone() → Distribution
Creates a deep copy of the fields in this message. (The generated code uses mergeFromMessage.)
override
copyWith(void updates(Distribution)) → Distribution
Apply updates to a copy of this message.
override
createEmptyInstance() → Distribution
Creates an empty instance of the same message type as this.
override
deepCopy() → T

Available on T, provided by the GeneratedMessageGenericExtensions extension

Returns a writable deep copy of this message.
ensureBucketOptions() → Distribution_BucketOptions
ensureRange() → Distribution_Range
extensionsAreInitialized() → bool
inherited
freeze() → GeneratedMessage
Make this message read-only.
inherited
getDefaultForField(int tagNumber) → dynamic
Returns the default value for the given field.
inherited
getExtension(Extension extension) → dynamic
Returns the value of extension.
inherited
getField(int tagNumber) → dynamic
Returns the value of the field associated with tagNumber, or the default value if it is not set.
inherited
getFieldOrNull(int tagNumber) → dynamic
Returns the value of a field, ignoring any defaults.
inherited
getTagNumber(String fieldName) → int?
inherited
hasBucketOptions() → bool
hasCount() → bool
hasExtension(Extension extension) → bool
Returns true if a value of extension is present.
inherited
hasField(int tagNumber) → bool
Whether this message has a field associated with tagNumber.
inherited
hasMean() → bool
hasRange() → bool
hasRequiredFields() → bool
Whether the message has required fields.
inherited
hasSumOfSquaredDeviation() → bool
isInitialized() → bool
Whether all required fields in the message and embedded messages are set.
inherited
mergeFromBuffer(List<int> input, [ExtensionRegistry extensionRegistry = ExtensionRegistry.EMPTY]) → void
Merges serialized protocol buffer data into this message.
inherited
mergeFromCodedBufferReader(CodedBufferReader input, [ExtensionRegistry extensionRegistry = ExtensionRegistry.EMPTY]) → void
Same as mergeFromBuffer, but takes a CodedBufferReader input.
inherited
mergeFromJson(String data, [ExtensionRegistry extensionRegistry = ExtensionRegistry.EMPTY]) → void
Merges field values from data, a JSON object, encoded as described by GeneratedMessage.writeToJson.
inherited
mergeFromJsonMap(Map<String, dynamic> json, [ExtensionRegistry extensionRegistry = ExtensionRegistry.EMPTY]) → void
Merges field values from a JSON object represented as a Dart map.
inherited
mergeFromMessage(GeneratedMessage other) → void
Merges the contents of the other into this message.
inherited
mergeFromProto3Json(Object? json, {TypeRegistry typeRegistry = const TypeRegistry.empty(), bool ignoreUnknownFields = false, bool supportNamesWithUnderscores = true, bool permissiveEnums = false}) → void
Merges field values from json, a JSON object using proto3 encoding.
inherited
mergeUnknownFields(UnknownFieldSet unknownFieldSet) → void
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
rebuild(void updates(T)) → T

Available on T, provided by the GeneratedMessageGenericExtensions extension

Apply updates to a copy of this message.
setExtension(Extension extension, Object value) → void
Sets the value of a non-repeated extension field to value.
inherited
setField(int tagNumber, Object value) → void
Sets the value of a field by its tagNumber.
inherited
toBuilder() → GeneratedMessage
Creates a writable, shallow copy of this message.
inherited
toDebugString() → String
Returns a String representation of this message.
inherited
toProto3Json({TypeRegistry typeRegistry = const TypeRegistry.empty()}) → Object?
Returns an Object representing Proto3 JSON serialization of this.
inherited
toString() → String
Returns a String representation of this message.
inherited
writeToBuffer() → Uint8List
Serialize the message as the protobuf binary format.
inherited
writeToCodedBufferWriter(CodedBufferWriter output) → void
Same as writeToBuffer, but serializes to the given CodedBufferWriter.
inherited
writeToJson() → String
Returns a JSON string that encodes this message.
inherited
writeToJsonMap() → Map<String, dynamic>
Returns the JSON encoding of this message as a Dart Map.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

create() → Distribution
createRepeated() → PbList<Distribution>
getDefault() → Distribution