Note: This article pertains to ArcGIS versions 8.x only. Later versions of ArcGIS may contain different functionality, as well as different names and locations for menus, commands and geoprocessing tools.
ArcInfo GRID's RECLASS function only reclassifies integer grids. Use this trick to reclassify your floating point grid. Be aware that some values may be rounded.
<multiplier> = 10^(# of decimals to keep + 1)
For example, this dataset must retain 2 decimal places:
1000 = 10^3 = 10^(2 + 1)
Grid: SETWINDOW dem Grid: SETCELL dem Grid: demx1000 = dem * 1000
Grid: demrcls = RECLASS(demx1000,demx1000.rmp)
Note: You will need to modify values in the reclass table to reflect the new grid values.
Code: Grid: demfinal = demrcls / 1000