FrameTable Class

Represents a modify-able array of data.

Definition

Namespace: Meta.Numerics.Data
Assembly: Meta.Numerics (in Meta.Numerics.dll) Version: 4.2.0+6d77d64445f7d5d91b12e331399c4362ecb25333
C#
public sealed class FrameTable : FrameView
Inheritance
Object    FrameView    FrameTable

Remarks

This is the central class for storing data in our data frame system.

Use the FromCsv(TextReader) method to create a frame table from a comma-separated values file or the FromDictionaries(IEnumerableIReadOnlyDictionaryString, Object) method to create a frame table from JSON or another collection-of-dictionaries representation. Or create one programmatically by using the FrameTable constructor to instantiate an empty data frame and AddColumn and AddRow to add columns and rows.

Using the methods inherited from the FrameView class, you can filter, re-order, manipulate, and analyze data without incurring the space or time costs of copying the stored data.

Constructors

FrameTable Initializes a new, empty frame table.

Properties

Columns Gets the columns of the table.
(Inherited from FrameView)
ItemString Get the column with the given name.
(Inherited from FrameView)
ItemInt32, Int32 Gets or sets the value in a given cell.
Rows Gets the rows of the table.
(Inherited from FrameView)

Methods

AddColumnT(String) Adds a new column with the given name and type.
AddColumnT(String, ListT) Adds a new column with the given name and stored values.
AddColumnsT Adds new columns with the given names.
AddComputedColumnT Add a computed column.
(Inherited from FrameView)
AddRow(IReadOnlyDictionaryString, Object) Adds a new row of data to the data frame.
AddRow(Object) Add a new row of data to the data frame.
AddRowT(IReadOnlyListT) Adds a new row of data to the frame.
AsColumnsT Exposes a list of columns of uniform type.
(Inherited from FrameView)
Clear Removes all data from the table.
Discard Constructs a new view that does not contain the given columns.
(Inherited from FrameView)
EqualsDetermines whether the specified object is equal to the current object.
(Inherited from Object)
FromCsv Creates a new frame table from a file of comma-separated values.
FromDictionaries Constructs a new frame table from a sequence of dictionaries.
GetColumnIndex Gets the index of a given column.
(Inherited from FrameView)
GetHashCodeServes as the default hash function.
(Inherited from Object)
GetTypeGets the Type of the current instance.
(Inherited from Object)
GroupBy(String, FuncFrameView, IReadOnlyDictionaryString, Object) Groups the data by the values in the given column, and computes aggregate quantities for each group.
(Inherited from FrameView)
GroupByT(String, FuncFrameView, T, String) Groups the data by the values in the given column, and computes the given aggregate quantity for each group.
(Inherited from FrameView)
OrderBy(ComparisonFrameRow) Sorts all rows by the given function.
(Inherited from FrameView)
OrderBy(String) Sorts the rows by the values in the given column.
(Inherited from FrameView)
OrderBy(String, SortOrder) Sort the rows by the values in the given column in the given direction.
(Inherited from FrameView)
OrderByT(String, ComparisonT) Sorts all rows by the given function of the given column.
(Inherited from FrameView)
RemoveColumn Removes the column with the given index from the data frame.
Select(ICollectionString) Constructs a new view, containing only the given columns.
(Inherited from FrameView)
Select(String) Constructs a new view, containing only the given columns.
(Inherited from FrameView)
ToCsv Write the data in the view to a comma-separated-value file.
(Inherited from FrameView)
ToDictionaries Writes the data in the view as a sequence of dictionaries.
(Inherited from FrameView)
ToStringReturns a string that represents the current object.
(Inherited from Object)
Where(FuncFrameRow, Boolean) Selects rows matching the given criteria.
(Inherited from FrameView)
WhereT(String, FuncT, Boolean) Selects rows in which the value of the given column matches the given criteria.
(Inherited from FrameView)
WhereNotNull Removes any rows that have null values in the named columns.
(Inherited from FrameView)

See Also