An overview of the Raster Reclass tools

The Reclass tools provide a variety of methods that allow you to reclassify or change input cell values to alternative values.

The most common reasons for reclassifying data are to accomplish the following:

• Replace values based on new information.
• Group certain values together.
• Reclassify values to a common scale (for example, for use in a suitability analysis or for creating a cost raster for use in the Cost Distance function).
• Set specific values to NoData or set NoData cells to a value.

Learn more about reclassification

There are several approaches to reclassifying your data. The methods of reclassification and the tools that perform them are:

• Individual values. (Lookup, Reclassify)
• Ranges of values. (Reclass by ASCII File, Reclass by Table, Reclassify)
• Intervals. (Slice)

Learn how to reclass by individual valuesLearn how to reclass by ranges of valuesLearn about reclassification tablesLearn how to group values into intervals or by area

The following table lists the available Reclass tools and provides a brief description of each.

Tool	Description
Lookup	Creates a new raster by looking up values found in another field in the table of the input raster.
Reclass by ASCII File	Reclassifies (or changes) the values of the input cells of a raster using an ASCII remap file.
Reclass by Table	Reclassifies (or changes) the values of the input cells of a raster using a remap table.
Reclassify	Reclassifies (or changes) the values in a raster.
Slice	Slices or reclassifies the range of values of the input cells into zones of equal interval, equal area, or by natural breaks.

Tools of the Reclass toolset