Libraries.Compute.Statistics.Columns.VectorColumn Documentation

VectorColumn is a DataFrameColumn that contains number primitives inside of a vector. No values can be undefined in this context and this column should be used if higher performance is necessary for a particular application. SetSize must be called on this column before loading into it, which means you need to know the size ahead of time.

Inherits from: Libraries.Compute.Statistics.DataFrameColumn, Libraries.Containers.Support.Comparison, Libraries.Language.Object

Actions Documentation

Add(number value)

VectorColumn has no undefined values, this call does nothing in this case.

Parameters

  • number value: the value to be converted.

Add(text value)

Parameters

  • text value

AddAsResult(Libraries.Language.Compile.Interpreter.Result value)

Parameters

Calculate(Libraries.Compute.Statistics.DataFrameColumnCalculation calculation)

This action conducts a calculation on this column. The calculation begins by issuing a Start action. Then if it is an iterable action, sends each data point to the class for processing. If not, it is asked to conduct the entire operation at once on the full data set. Finally, it issues an end action.

Parameters

CalculateValueCount()

Return

Libraries.Containers.HashTable

CalculateValueCountAsText()

This action returns a HashTable with AsText key values and counts of the items in the column.

Return

Libraries.Containers.HashTable: a HashTable with the count for each item in the column.

CanConvertToVector()

Because this column is a vector, this action copies the vector. As such, this is a deep copy.

Return

boolean:

Compare(boolean a, boolean b)

This action provides a way to compare two objects. The returned values from its sole action is an integer with the value of -1 (the left item is smaller), 0 (the items are equal) or 1 (the left item is larger).It can be used to override the standard comparison in Object for various applications (e.g., sorting). In the case of booleans, by default, false is considered less than true.

Parameters

  • boolean a
  • boolean b

Return

integer:

Compare(Libraries.Language.Object object)

This action compares two object hash codes and returns an integer. The result is larger if this hash code is larger than the object passed as a parameter, smaller, or equal. In this case, -1 means smaller, 0 means equal, and 1 means larger. This action was changed in Quorum 7 to return an integer, instead of a CompareResult object, because the previous implementation was causing efficiency issues.

Parameters

Return

integer: The Compare result, Smaller, Equal, or Larger.

Example

Object o
Object t
integer result = o:Compare(t) //1 (larger), 0 (equal), or -1 (smaller)

Compare(number a, number b)

This action provides a way to compare two objects. The returned values from its sole action is an integer with the value of -1 (the left item is smaller), 0 (the items are equal) or 1 (the left item is larger).It can be used to override the standard comparison in Object for various applications (e.g., sorting).

Parameters

  • number a
  • number b

Return

integer:

Compare(integer a, integer b)

This action provides a way to compare two objects. The returned values from its sole action is an integer with the value of -1 (the left item is smaller), 0 (the items are equal) or 1 (the left item is larger).It can be used to override the standard comparison in Object for various applications (e.g., sorting).

Parameters

  • integer a
  • integer b

Return

integer:

Compare(Libraries.Language.Object a, Libraries.Language.Object b)

We can manually set a comparison, which is then passed to the default sorting routines if sorting occurs.

Parameters

Return

integer:

ConvertToBooleanColumn()

Regardless of the type of this column, the system will attempt to convert it to a BooleanColumn. This may cause an error to be thrown if the types are not compatible. Attrribute: Returns the newly converted column

Return

Libraries.Compute.Statistics.Columns.BooleanColumn:

ConvertToIntegerColumn()

Regardless of the type of this column, the system will attempt to convert it to an IntegerColumn. This may cause an error to be thrown if the types are not compatible. Attrribute: Returns the newly converted column

Return

Libraries.Compute.Statistics.Columns.IntegerColumn:

ConvertToNumberColumn()

Regardless of the type of this column, the system will attempt to convert it to a NumberColumn. This may cause an error to be thrown if the types are not compatible. Attrribute: Returns the newly converted column

Return

Libraries.Compute.Statistics.Columns.NumberColumn:

ConvertToTextArray()

This action converts to a text array from the column.

Return

Libraries.Containers.Array: a version of the column as a text array.

ConvertToTextColumn()

Regardless of the type of this column, the system will attempt to convert it to a TextColumn. This may cause an error to be thrown if the types are not compatible. Attrribute: Returns the newly converted column

Return

Libraries.Compute.Statistics.Columns.TextColumn:

ConvertToVector()

Because this column is a vector, this action copies the vector. As such, this is a deep copy.

Return

Libraries.Compute.Vector:

Copy(integer rowStart, integer rowEnd, boolean sort, boolean unique)

Parameters

  • integer rowStart
  • integer rowEnd
  • boolean sort
  • boolean unique

Return

Libraries.Compute.Statistics.DataFrameColumn

Copy()

Return

Libraries.Compute.Statistics.DataFrameColumn

Copy(boolean sort, boolean unique)

Parameters

  • boolean sort
  • boolean unique

Return

Libraries.Compute.Statistics.DataFrameColumn

Copy(integer rowStart, integer rowEnd)

Parameters

  • integer rowStart
  • integer rowEnd

Return

Libraries.Compute.Statistics.DataFrameColumn

CopyEmpty()

This action copies the type of the data frame, but does not copy over its rows. The header name is retained.

Return

Libraries.Compute.Statistics.DataFrameColumn: the column of the appropriate type but without the data.

CopyToRow(Libraries.Compute.Statistics.DataFrameColumn column, integer to, integer from)

Parameters

Equals(Libraries.Language.Object object)

This action determines if two objects are equal based on their hash code values.

Parameters

Return

boolean: True if the hash codes are equal and false if they are not equal.

Example

use Libraries.Language.Object
use Libraries.Language.Types.Text
Object o
Text t
boolean result = o:Equals(t)

Get(integer row)

This action continues to auto-box, so it should not be used in high-performance situations.

Parameters

  • integer row

Return

Libraries.Language.Types.Number:

GetAsBoolean(integer index)

Regardless of the type of the column, this action attempts to convert the item at the index to a boolean. Attrribute: Parameter index the item to be converted

Parameters

  • integer index

Return

boolean:

GetAsDateTime(integer index)

Regardless of the type of the column, this action attempts to convert the item at the index to a date time. Attrribute: Parameter index the item to be converted

Parameters

  • integer index

Return

Libraries.System.DateTime:

GetAsInteger(integer index)

Parameters

  • integer index

Return

integer

GetAsNumber(integer index)

This is the action that should be used for performance.

Parameters

  • integer index

Return

number:

GetAsText(integer index)

This action continues to auto-box, so it should not be used in high-performance situations.

Parameters

  • integer index

Return

text:

GetHashCode()

This action gets the hash code for an object.

Return

integer: The integer hash code of the object.

Example

Object o
integer hash = o:GetHashCode()

GetHeader()

This gets the header for this column.

Return

text:

GetRows()

Return

Libraries.Compute.Vector

GetSize()

Return

integer

GetSortComparison()

We can get the comparison used by the sorting routines. By default, this is undefined. When undefined, alphabetical sorting is used.

Return

Libraries.Containers.Support.Comparison:

GetUndefinedSize()

This action returns the number of items in this column that are undefined.

Return

integer: the number of items that are not defined

GetUndefinedText()

This action returns a default text string for undefined values.

Return

text:

GetUnique()

Return

Libraries.Containers.Array

IsBooleanColumn()

This action detects whether this column ultimately stores booleans inside of it. This type of information is implementation dependent, as arbitrary columns can store these values however they see fit.

Return

boolean: true if this column stores booleans

IsDateTimeColumn()

This action detects whether this column ultimately stores dates/times inside of it. This type of information is implementation dependent, as arbitrary columns can store these values however they see fit.

Return

boolean: true if this column stores dates/times

IsIntegerColumn()

This action detects whether this column ultimately stores integers inside of it. This type of information is implementation dependent, as arbitrary columns can store these values however they see fit.

Return

boolean: true if this column stores integers

IsNumberColumn()

This is the action that should be used for performance.

Return

boolean:

IsResultCheckable(Libraries.Language.Compile.Interpreter.Result value)

Returns whether or not the result is checkable inside sub-types.This action generally should not be used.

Parameters

Return

boolean: whether or not it is valid

IsTextColumn()

This action detects whether this column ultimately stores text inside of it. This type of information is implementation dependent, as arbitrary columns can store these values however they see fit.

Return

boolean: true if this column stores text

IsUndefined()

This action returns a boolean on if the column is undefined.

Return

boolean: true if the undefined size is equal to the size. Meaning every row is undefined.

IsUndefined(integer row)

Parameters

  • integer row

Return

boolean

Move(integer left, integer right)

Parameters

  • integer left
  • integer right

ReplaceUndefined(text value)

VectorColumn has no undefined values, this call does nothing in this case.

Parameters

  • text value: the value to be converted.

SendValueTo(integer index, Libraries.Compute.Statistics.DataFrameColumnCalculation calculation)

Parameters

SetAsBoolean(integer index, boolean value)

This action sets the index to a boolean if and only if this is a boolean column. Attrribute: Parameter index the item to be converted

Parameters

  • integer index
  • boolean value: the value to be placed in the column

SetAsInteger(integer index, integer value)

Parameters

  • integer index
  • integer value

SetAsNumber(integer index, Libraries.Language.Types.Number value)

Parameters

SetAsNumber(integer index, number value)

Parameters

  • integer index
  • number value

SetAsResult(integer index, Libraries.Language.Compile.Interpreter.Result value)

Parameters

SetAsText(integer index, text value)

This action sets the index to text if and only if this is a text column. Attrribute: Parameter index the item to be converted

Parameters

  • integer index
  • text value: the value to be placed in the column

SetHeader(text header)

This sets the header for this column.

Parameters

  • text header

SetRows(Libraries.Compute.Vector rows)

Parameters

SetSize(integer size)

Parameters

  • integer size

SetSortComparison(Libraries.Containers.Support.Comparison comparison)

We can manually set a comparison, which is then passed to the default sorting routines if sorting occurs.

Parameters

SplitByRows(Libraries.Containers.Array<integer> sortedArray)

This action takes an index sorted array and splits the column into two columns, returning copies. The first one contains all of the items from the indexes in the array. The second one is the items that were not in the array.

Parameters

Return

Libraries.Containers.Array:

Swap(integer left, integer right)

Parameters

  • integer left
  • integer right

ToText()

Return

text