jmeel77

aproblem with unsupervised classification

Discussion created by jmeel77 on Nov 30, 2011
Latest reply on Nov 30, 2011 by mzcoyle
i have an issue with the python code i took from the arcgis help
im trying to run it but without any succes i modify to the durectory and the rasters i work with but it keeps telling me that i have error 000735
HERE"S THE PYTHON CODE




# Name: IsoClusterUnsupervisedClassification_Ex_02.py
 # Description: Uses an isodata clustering algorithm to determine the 
# characteristics of the natural groupings of cells in multidimensional 
# attribute space and stores the results in an output ASCII signature file.
 # Requirements: Spatial Analyst Extension
 # Author: ESRI
 
# Import system modules
 import arcpy
 import sys
 from arcpy import env
 from arcpy.sa import *
 

# Set environment settings
 env.workspace = "e:\Users\profiles\sjmeel77\Desktop\arcgis_jmeel"
 
# Set local variables
 inRaster = sys.argv[1]
 classes = 8
 minMembers = 50
 sampInterval = 15
 
# Check out the ArcGIS Spatial Analyst extension license
 arcpy.CheckOutExtension("Spatial")
 
# Execute IsoCluster
 
outUnsupervised = IsoClusterUnsupervisedClassification(inRaster, classes, minMembers, sampInterval)
 outUnsupervised.save("e:\Users\profiles\sjmeel77\Desktop\arcgis_jmeel\iso_clustre.pyoutunsup01.tif")
 

and heres the error that appears after the process

Traceback (most recent call last):
 File "e:\Users\profiles\sjmeel77\Desktop\arcgis_jmeel\iso_clustre.py", line 29, in <module>
 outUnsupervised = IsoClusterUnsupervisedClassification(inRaster, classes, minMembers, sampInterval)
 File "C:\Program Files (x86)\ArcGIS\Desktop10.0\arcpy\arcpy\sa\Functions.py", line 6607, in IsoClusterUnsupervisedClassification
 out_signature_file)
 File "C:\Program Files (x86)\ArcGIS\Desktop10.0\arcpy\arcpy\sa\Utils.py", line 47, in swapper
 result = wrapper(*args, **kwargs)
 File "C:\Program Files (x86)\ArcGIS\Desktop10.0\arcpy\arcpy\sa\Functions.py", line 6600, in wrapper
 out_signature_file)
 File "C:\Program Files (x86)\ArcGIS\Desktop10.0\arcpy\arcpy\geoprocessing\_base.py", line 474, in <lambda>
 return lambda *args: val(*gp_fixargs(args))
 ExecuteError: Failed to execute. Parameters are not valid.
 ERROR 000732: Input raster bands: Dataset 11 does not exist or is not supported
 ERROR 000735: Output classified raster: Value is required
 Failed to execute (IsoClusterUnsupervisedClassification).


i have reached dead end so plz help me if u can  :(

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