![](../icons/Help.png) | DFColumn Class |
Abstract base class for data frame column types.
Inheritance Hierarchy Namespace: CenterSpace.NMath.CoreAssembly: NMath (in NMath.dll) Version: 7.4
Syntax[SerializableAttribute]
public abstract class DFColumn : ICollection,
IEnumerable, IDFColumn, ICloneable
<SerializableAttribute>
Public MustInherit Class DFColumn
Implements ICollection, IEnumerable, IDFColumn, ICloneable
[SerializableAttribute]
public ref class DFColumn abstract : ICollection,
IEnumerable, IDFColumn, ICloneable
[<AbstractClassAttribute>]
[<SerializableAttribute>]
type DFColumn =
class
interface ICollection
interface IEnumerable
interface IDFColumn
interface ICloneable
end
The DFColumn type exposes the following members.
Constructors
Properties | Name | Description |
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![Public property Public property](../icons/pubProperty.gif) | ColumnType |
Gets the type of the objects held by this column.
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![Public property Public property](../icons/pubProperty.gif) | Count |
Gets the number of ojects in this column.
|
![Public property Public property](../icons/pubProperty.gif) | IsNumeric |
Returns true if the objects in this column are integers or floating point
numbers; otherwise, false.
|
![Public property Public property](../icons/pubProperty.gif) | IsSynchronized |
Returns false. Access to this class is not synchronized.
|
![Public property Public property](../icons/pubProperty.gif) | Item |
Gets the object in this column at the given position.
|
![Public property Public property](../icons/pubProperty.gif) | Label |
Gets and sets the label in the header of this column.
|
![Public property Public property](../icons/pubProperty.gif) | MissingValue |
Gets and sets the value used to represent missing values in this column.
|
![Public property Public property](../icons/pubProperty.gif) | Name |
Gets the name of this column.
|
![Public property Public property](../icons/pubProperty.gif) | SyncRoot |
Gets an object that can be used to synchronize access to this ICollection.
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Methods | Name | Description |
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![Public method Public method](../icons/pubMethod.gif) | Add |
Adds an object to this column.
|
![Public method Public method](../icons/pubMethod.gif) | Clean |
Returns a copy of this column without missing values.
|
![Public method Public method](../icons/pubMethod.gif) | Clone |
Returns a deep copy of this column.
|
![Public method Public method](../icons/pubMethod.gif) | Convert |
Converts an object to the type held by this column.
|
![Public method Public method](../icons/pubMethod.gif) | CopyTo(Array) |
Copies the contents of this column into the given array, beginning
at the first position within the array.
|
![Public method Public method](../icons/pubMethod.gif) | CopyTo(Array, Int32) |
Copies the contents of this column into the given array, beginning
at the given position within the array.
|
![Public method Public method](../icons/pubMethod.gif) | GetEnumerator |
Returns an enumerator for this column.
|
![Public method Public method](../icons/pubMethod.gif) | GetFactor |
Creates a factor from this column.
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![Public method Public method](../icons/pubMethod.gif) | GetFactor(Object) |
Creates a factor from this column.
|
![Public method Public method](../icons/pubMethod.gif) | Insert |
Inserts an object into this column and the given position.
|
![Public method Public method](../icons/pubMethod.gif) | IsMissing |
Returns true if the element at the given position is missing;
otherwise, false.
|
![Public method Public method](../icons/pubMethod.gif) ![Static member Static member](../icons/Static.gif) | Parse(DataColumn) |
Parses the DataColumn into a DFColumn.
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![Public method Public method](../icons/pubMethod.gif) ![Static member Static member](../icons/Static.gif) | Parse(ICollection) |
Parses a column from a collection.
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![Public method Public method](../icons/pubMethod.gif) ![Static member Static member](../icons/Static.gif) | Parse(ICollection, Boolean) |
Parses a column from a collection.
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![Public method Public method](../icons/pubMethod.gif) ![Static member Static member](../icons/Static.gif) | Parse(ICollection, String) |
Parses a column from a collection.
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![Public method Public method](../icons/pubMethod.gif) ![Static member Static member](../icons/Static.gif) | Parse(ICollection, String, Boolean) |
Parses a column from a collection.
|
![Public method Public method](../icons/pubMethod.gif) | Permute |
Permutes the objects in this column by the given permutation vector (ranks).
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![Public method Public method](../icons/pubMethod.gif) | RemoveAt |
Removes the object from this column at the given position.
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![Protected method Protected method](../icons/protMethod.gif) ![Static member Static member](../icons/Static.gif) | SetClone(DFColumn, DFColumn) |
Set the memebers of the clone.
|
![Protected method Protected method](../icons/protMethod.gif) ![Static member Static member](../icons/Static.gif) | SetClone(DFColumn, DFColumn, Subset) |
Set the memebers of the clone.
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![Public method Public method](../icons/pubMethod.gif) | SubColumn(Slice) |
Gets the subcolumn specified by the given Slice.
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![Public method Public method](../icons/pubMethod.gif) | SubColumn(Subset) |
Gets the subcolumn specified by the given Subset.
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![Public method Public method](../icons/pubMethod.gif) | Swap |
Swaps the position of the given elements in the column.
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![Public method Public method](../icons/pubMethod.gif) | ToArray |
Exports the contents of this column to an array.
|
![Public method Public method](../icons/pubMethod.gif) | ToDoubleArray |
Extracts the contents of a column to an array of doubles.
|
![Public method Public method](../icons/pubMethod.gif) | ToDoubleVector |
Extracts the contents of a column to a DoubleVector.
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![Public method Public method](../icons/pubMethod.gif) | ToIntArray |
Extracts the contents of a column to an array of integers.
|
![Public method Public method](../icons/pubMethod.gif) | ToString |
Returns a formatted string representation of this column.
(Overrides ObjectToString) |
![Public method Public method](../icons/pubMethod.gif) | ToString(Int32) |
Returns formatted representation.
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![Public method Public method](../icons/pubMethod.gif) | ToString(Int32, String) |
Returns formatted representation.
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![Public method Public method](../icons/pubMethod.gif) | ToStringArray |
Exports the contents of this column to an array of strings.
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![Public method Public method](../icons/pubMethod.gif) | ToStringArray(String) |
Exports the contents of this column to an array of strings.
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Fields | Name | Description |
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![Protected field Protected field](../icons/protField.gif) | label_ |
The label in the header of this column. Can be changed.
|
![Protected field Protected field](../icons/protField.gif) | list_ |
An array list of column elements.
|
![Protected field Protected field](../icons/protField.gif) | missingValue_ |
Value used to represent missing values in this column.
|
![Protected field Protected field](../icons/protField.gif) | name_ |
The name of this column. Must be set in the constructor.
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See Also
Inheritance Hierarchy