Dan, thanks for your suggestion. Once I deleted the last parameter as you suggested, the code ran without causing ArcGIS to crash. However, I then got an error that the parameter "Sum_Area" in the next line of code did not exist. However, when I open the sumStats file it is there. Any thoughts about that? Robert J. Ryan, Ph.D., P.E. Associate Professor Senior Design Coordinator Civil and Environmental Engineering Department Temple University 1947 N 12th St Philadelphia PA 19122 Office: EA515 Phone: 215-204-3054 Fax: 215-204-4696
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