ExtractColumnFromArray Task

This task extracts a single column from an array.

Example

; Start the application

e = ENVI(/HEADLESS)

; Get the task from the catalog of ENVITasks

Task = ENVITask('ExtractColumnFromArray')

; Define inputs

Task.INPUT_ARRAY = [[1,2,3], [4,5,6]]

Task.INDEX = 0

; Run the task

Task.Execute

Print, Task.COLUMN

; IDL prints: 1, 4

Syntax

Result = ENVITask('ExtractColumnFromArray')

Input properties (Set, Get): INDEX, INPUT_ARRAY

Output properties (Get only): OUTPUT_COLUMN

Properties marked as "Set" are those that you can set to specific values. You can also retrieve their current values any time. Properties marked as "Get" are those whose values you can retrieve but not set.

Methods

This task inherits the following methods from ENVITask:

Properties

This task inherits the following properties from ENVITask:

COMMUTE_ON_DOWNSAMPLE

INDEX (required)

Specify a zero-based index number that corresponds to the column to extract.

INPUT_ARRAY (required)

Specify the input URI.

OUTPUT_COLUMN

This is the extracted column.

Version History

ENVI 5.6

Introduced

API Version

4.3