Latest Contributions by DanPatterson_Retired

makefeaturelayer ?  Is that what you are after? ... View more

The number of cells is the buffer size (# of cells * cell size = distance) zone is the class/zone to expand, hence, if you want to buffer all class 1 zones, then you would use it or provide a list of values.  It is all documented in the help files, for example, for version 10 of ArcMap http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//009z00000036000000.htm ... View more

1  No, arcpy is for version 10 2  check the 9.3 help files for "searchcursor" ... View more

Again, the Define Projection tools does not project the data, it just makes it wrong if it is defined wrong, you need to project the data using the appropriate tool http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//00170000007q000000 On a side note, ESRI, change the name of the Define Projection tool as per the ArcGIS Ideas suggestion https://c.na1.visual.force.com/apex/ideaView?id=087300000008MkXAAU please vote, the confusion is prevelant and needs to be addressed. ... View more

It may that your coordinates are in decimal degrees (aka a Geographic Coordinate system with a NAD 83 datum) and defining the coordinate system incorrectly isn't going to work.  It needs to have a defined coordinate system first ... if it doesn't have one use the Define Projection tool.  If it does have one then you need to project it to what you want.  Projection produces a new file.  Check your data source and see if it has a defined projection, if it does, then Project it to what you want. ... View more

Expand    for an outward buffer Shrink     for an inward buffer Information is in the help files. ... View more

Calculate field is used on the whole field, use an updatecursor as suggested, then put in an else section telling what to do if the divisor is 0 ... View more

What is the projection? NAD83 is a datum, not a coordinate system. ... View more

Homework requires you show what you have tried so far.  Also, specify the version of ArcMap. ... View more

For version 10 or Arcmap use Split Layer by Attributes http://resources.arcgis.com/gallery/file/geoprocessing/details?entryID=37AEB018-1422-2418-A036-CA6D9920F808 querying on the FID field will allow you to produce separate shapefiles for each point in your source shapefile. ... View more

Need more details... are you reading files from paths with spaces?  geodatabases? etc etc screen grabs of your IDW dialog would help ... View more

What is the error message?  Are you sure you have enabled the extension prior to its use? ... View more

Jason ... oh you all revealing types 🙂 Thanks ... View more

Just curious, but is the da module using numpy recarrays? or is it some com wrapper thing? ... View more

integer division? try Power("raster",2.0/3.0) ... View more