Libraries.Compute.Statistics.Columns.TextColumn

TextColumn is a DataFrameColumn that contains Number objects. These objects can be undefined or not.

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.

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

This action returns whether or not this column type can be converted to a Vector of numbers.

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.

Example Code

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

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

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

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

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

Some column types can be converted to a raw vector of numbers. All other column types throw an error if they cannot convert. This vector conversion stores numbers more tightly in primitive form, so no undefined values are allowed, but the system can process on the vector more quickly and efficiently.

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

Example Code

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

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

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

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

This action gets the hash code for an object.

Example Code

Object o
        integer hash = o:GetHashCode()

This gets the header for this column.

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

This action returns a default text string for undefined values.

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.

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.

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

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

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

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

This sets the header for this column.