For (ModelBuilder)

Summary

Iterates over a starting and ending value by a given value. It works exactly like For in any scripting/programming language, executing through a set number of items.

Learn how For works in ModelBuilder

Usage

• This tool is intended for use in ModelBuilder and not in Python scripting.

• The tool increments the starting value until the maximum specified limit is reached. For example, If the From Value is 0 and To Value is 10 to be incremented By Value 3, the iteration will increment until value 9.

• If an Iterator is added to a model, all tools in the model iterate for each value in the iterator. If you do not want to run each tool in the model for each iterated value, create a sub-model/model within a model/nested model that contains only the iterator and add it as a model tool into the main model.

Legacy:

The For tool replaces Iterate By Count or Iterate By Variable that previously existed in the Iteration Options of Model Properties.

Syntax

For_mb (from, to, increment)

Parameter	Explanation	Data Type
from	Value to start the iteration from.	Long
to	Value to run the iteration to.	Long
increment	Value to increment by.	Long

Environments

This tool does not use any geoprocessing environments

Licensing Information

ArcGIS for Desktop Basic: Yes

ArcGIS for Desktop Standard: Yes

ArcGIS for Desktop Advanced: Yes