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 parameters (Set, Get): INDEX, INPUT_ARRAY

Output parameters (Get only): OUTPUT_COLUMN

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

Input Parameters

INDEX (required)

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

INPUT_ARRAY (required)

Specify the input URI.

Output Parameters

OUTPUT_COLUMN

This is the extracted column.

Methods

Execute

Parameter

ParameterNames

Properties

Version History

ENVI 5.6

Introduced