CategoricColumn class
Constructors
Properties
-
categories
→ List<
String> -
A copy of the categories of stored data.
no setter
- copy → CategoricColumn
-
A copy of this column.
no setter
-
counts
→ Map<
String, int> -
The number of times each value occurs in this column.
no setterinherited
- entropy → num
-
A measure of the entropy of the stored data.
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- impurity → num
-
The Gini impurity of the stored data.
no setter
-
indexOrders
→ List<
int> -
The indices the respective elements would move to upon ordering.
no setterinherited
-
indicesWithMissingValues
→ List<
int> -
The indices where data is missing.
no setter
-
indicesWithValues
→ List<
int> -
The indices where data is present.
no setter
- length → int
-
The number of elements in this column.
no setterinherited
-
orderedIndices
→ List<
int> -
The indices that would order the data.
no setterinherited
-
proportions
→ Map<
String, num> -
The proportion of this column made up by each value.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
-
summary
→ Map<
String, num> -
A statistical summary of this column.
no setter
-
uniqueValues
→ Set<
String> -
The unique values stored in this column.
no setterinherited
-
values
→ List<
String> -
A copy of the data stored in this column..
no setterinherited
Methods
-
add(
String element) → void -
Adds
elementto this column. -
addAll(
Iterable< String> elements) → void -
Adds all values in
elementsto this column. -
bootstrap(
{int? seed}) → CategoricColumn - A bootstrap sample from this column.
-
bootstrapConfidenceIntervals(
{int simulations = 1000, num confidence = 0.95}) → Future< Map< String, (num, num)> > -
Bootstrap confidence intervals for statistics.
inherited
-
indicesWhere(
bool predicate(String)) → List< int> -
The indices of the values that meet
predicate.inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
resetCategories(
Iterable< String> categories) → void - Resets the categories; for example, if we would like the categories of two categoric columns to match.
-
toString(
) → String -
A string representation of this object.
inherited
-
valuesAtIndices(
Iterable< int> indices) → List<String> -
The values stored at
indicesin this column.inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
-
operator [](
int index) → String -
operator []=(
int index, String value) → void
Constants
- missingValueMarker → const String
- A string to represent missing data.