|
Classes Class |
Methods for operating with categorical data.
Inheritance HierarchySystem.Object
Accord.Statistics.Classes
Accord.Statistics.Classes
Namespace: Accord.Statistics
Assembly: Accord.Math (in Accord.Math.dll) Version: 3.8.0
SyntaxThe Classes type exposes the following members.
Methods| Name | Description | |
|---|---|---|
  | Decide(Double) |
Hyperplane decision function. Return true if distance
is higher than zero, and false otherwise.
|
| Decide(Double[]) |
Hyperplane decision function. Return true if distance
is higher than zero, and false otherwise.
|
| Decide(Double[][]) |
Hyperplane decision function. Return true if distance
is higher than zero, and false otherwise.
|
| Decide(Int32) |
Hyperplane decision function. Return true if distance
is higher than zero, and false otherwise.
|
| Decide(Int32[]) |
Hyperplane decision function. Return true if distance
is higher than zero, and false otherwise.
|
| Decide(Int32[][]) |
Hyperplane decision function. Return true if distance
is higher than zero, and false otherwise.
|
| Expand(Int32[],Int32[],Int32[]) |
Extends a grouped data into a full observation matrix.
|
| Expand(Int32[][], Int32, Int32, Int32) |
Expands a grouped data into a full observation matrix.
|
| GetRatio(Int32[],Int32[]) |
Calculates the prevalence of a class for each variable.
|
| GetRatio(Boolean[], Int32, Int32) |
Gets the percentage of positive samples in a set of class labels.
|
| GetRatio(Int32[], Int32, Int32) |
Gets the percentage of positive samples in a set of class labels.
|
| GetRatio(Int32[][], Int32, Int32) |
Calculates the prevalence of a class.
|
| IsBinary |
Determines whether the class labels contains only (-1 and +1) or (0 and +1).
|
| IsMinusOnePlusOne |
Determines whether the class labels contains only -1 and +1.
|
| IsMulticlass |
Determines whether the class labels contains one true value per sample.
|
| IsMultilabel |
Determines whether the class labels contains one true value per sample.
|
| IsZeroOne |
Determines whether the class labels contains only zero and ones.
|
 | Random(Int32, Double) |
Returns a random group assignment for a sample
into two mutually exclusive groups.
|
| Random(Int32,Double[]) |
Returns a random group assignment for a sample.
|
| Random(Int32, Int32) |
Returns a random group assignment for a sample.
|
| Random(Int32[], Double) |
Returns a random group assignment for a sample, making
sure different class labels are distributed evenly among
the groups.
|
| Random(Int32[], Int32) |
Returns a random group assignment for a sample, making
sure different class labels are distributed evenly among
the groups.
|
| Random(Int32[], Int32, Int32) |
Returns a random group assignment for a sample, making
sure different class labels are distributed evenly among
the groups.
|
| Separate<T>(T[],Int32[]) |
Divides values into groups given a vector
containing the group labels for every value.
|
| Separate<T>(T[],Int32[], Int32) |
Divides values into groups given a vector
containing the group labels for every value.
|
| Summarize |
Groups the occurrences contained in data matrix of binary (dichotomous) data.
This operation can be reversed using the Expand(Int32[] [] , Int32, Int32, Int32) method.
|
| ToMinusOnePlusOne(Boolean) |
Converts a boolean variable into a -1 or +1 representation (-1 is false, +1 is true).
|
| ToMinusOnePlusOne(Boolean[]) |
Converts boolean variables into a -1 or +1 representation (-1 is false, +1 is true).
|
| ToMinusOnePlusOne(Boolean[][]) |
Converts boolean variables into a -1 or +1 representation (-1 is false, +1 is true).
|
| ToMinusOnePlusOne(Double) |
Converts a boolean variable into a -1 or +1 representation (-1 is false, +1 is true).
|
| ToMinusOnePlusOne(Double[]) |
Converts boolean variables into a -1 or +1 representation (-1 is false, +1 is true).
|
| ToMinusOnePlusOne(Int32) |
Converts a boolean variable into a -1 or +1 representation (-1 is false, +1 is true).
|
| ToMinusOnePlusOne(Int32[]) |
Converts boolean variables into a -1 or +1 representation (-1 is false, +1 is true).
|
| ToMinusOnePlusOne<T>(Boolean[][]) |
Converts boolean variables into a -1 or +1 representation (-1 is false, +1 is true).
|
| ToMulticlass(Double[]) |
Converts double variables into class labels, starting at zero.
|
| ToMulticlass(Int32[]) |
Converts double variables into class labels, starting at zero.
|
| ToMulticlass(Double[], Int32) |
Converts double variables into class labels, starting at zero.
|
| ToMulticlass(Int32[], Int32) |
Converts double variables into class labels, starting at zero.
|
| ToZeroOne(Boolean) |
Converts a boolean variable into a 0-or-1 representation (0 is false, 1 is true).
|
| ToZeroOne(Boolean[]) |
Converts boolean variables into a 0-or-1 representation (0 is false, 1 is true).
|
| ToZeroOne(Double) |
Converts a boolean variable into a 0-or-1 representation (0 is false, 1 is true).
|
| ToZeroOne(Double[]) |
Converts boolean variables into a 0-or-1 representation (0 is false, 1 is true).
|
| ToZeroOne(Int32) |
Converts a boolean variable into a 0-or-1 representation (0 is false, 1 is true).
|
| ToZeroOne(Int32[]) |
Converts boolean variables into a 0-or-1 representation (0 is false, 1 is true).
|
See Also