NumericColumn class
Constructors
-
NumericColumn(Iterable<
num> xs)
Properties
- copy → NumericColumn
-
A copy of this column.
no setter
-
counts
→ Map<
num, int> -
The number of times each value occurs in this column.
no setterinherited
- densityFunctionIfNormal → num Function(num)
-
An approximate density function assuming the data is normally distributed.
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
-
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
- inferredStandardDeviation → num
-
The estimated standard deviation in the population the stored data
was sampled from.
no setter
- inferredVariance → num
-
The estimated variance in the population the stored data was sampled from.
no setter
- interQuartileRange → num
-
The inter-quartile range of the stored data.
no setter
- kernelDensityFunction → num Function(num)
-
An approximate, nonparametric kernel density function.
no setter
- length → int
-
The number of elements in this column.
no setterinherited
- lowerQuartile → num
-
The lower quartile of the stored data.
no setter
- maximum → num
-
The greatest value in the stored data.
no setter
- maximumNonOutlier → num
-
The greatest value on the stored data that is not an outlier.
no setter
- mean → num
-
The mean of the stored data.
no setter
- meanAbsoluteDeviation → num
-
The mean absolute deviation from the mean of the stored data.
no setter
- median → num
-
The median of the stored data.
no setter
- minimum → num
-
The least value in the stored data.
no setter
- minimumNonOutlier → num
-
The least value in the stored data that is not an outlier.
no setter
-
orderedIndices
→ List<
int> -
The indices that would order the data.
no setterinherited
-
proportions
→ Map<
num, num> -
The proportion of this column made up by each value.
no setterinherited
-
quantiles
→ List<
num> -
The quantiles associated with the stored values.
no setter
-
quantilesIfNormal
→ List<
num> -
The theoretical quantiles associated with the stored values under
the assumption that the sampled population is normal.
no setter
- range → num
-
The range of stored values.
no setter
-
residuals
→ List<
num> -
The difference between each stored value and the mean.
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- skewness → num
-
Fisher's moment coefficient of skewness of the stored data.
no setter
-
squaredResiduals
→ List<
num> -
The squared difference between each stored value and the mean.
no setter
- standardDeviation → num
-
The standard deviation in the data.
no setter
- sum → num
-
The sum of the stored data.
no setter
-
summary
→ Map<
String, num> -
A statistical summary of this column.
no setter
- sumOfSquares → num
-
The sum of the squares of the stored data.
no setter
-
uniqueValues
→ Set<
num> -
The unique values stored in this column.
no setterinherited
- upperQuartile → num
-
The upper quartile of the stored data.
no setter
-
values
→ List<
num> -
A copy of the data stored in this column..
no setterinherited
- variance → num
-
The variance in the stored data.
no setter
-
zScores
→ List<
num> -
The number of standard deviations each stored value is from the mean.
no setter
-
zScoresInferred
→ List<
num> -
The number of estimated standard deviations of the sampled population
each stored value is from the mean.
no setter
Methods
-
add(
num element) → void -
Adds
elementto this column. -
addAll(
Iterable< num> elements) → void -
Adds all values in
elementsto this column. -
bootstrap(
{int? seed}) → NumericColumn - 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
-
correlation(
NumericColumn that) → num -
The correlation between the values stored in this and those in
that. -
dot(
NumericColumn that) → num -
The dot product of this and
that. -
indicesWhere(
bool predicate(num)) → 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
-
standardizedZScores(
num mu, num sigma) → List< num> - The z score associated with each value under the assumption the sampled population has mean μ and standard deviation σ.
-
tile(
num p) → num - The p-tile of the stored data, where 0 ≤ p ≤ 1.
-
toString(
) → String -
A string representation of this object.
inherited
-
valuesAtIndices(
Iterable< int> indices) → List<num> -
The values stored at
indicesin this column.inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
-
operator [](
int index) → num -
operator []=(
int index, num value) → void