I am trying to use the script from Randomly subsetting X% of selected points using ArcPy? to randomly select and export points in ArcGIS.
Specifically, I am using this:
def SelectRandomByCount (layer, count):
import random
layerCount = int (arcpy.GetCount_management (layer).getOutput (0))
if layerCount < count:
print "input count is greater than layer count"
return
oids = [oid for oid, in arcpy.da.SearchCursor (layer, "OID@")]
oidFldName = arcpy.Describe (layer).OIDFieldName
delimOidFld = arcpy.AddFieldDelimiters (layer, oidFldName)
randOids = random.sample (oids, count)
oidsStr = ", ".join (map (str, randOids))
sql = "{0} IN ({1})".format (delimOidFld, oidsStr)
arcpy.SelectLayerByAttribute_management (layer, "", sql)
arcpy.CopyFeatures_management(layer, "random_start_20pop")
arcpy.SelectLayerByAttribute_management(layer, "SWITCH_SELECTION")
arcpy.CopyFeatures_management(layer, "endings_for_20pop")
What should I do to create Python tool in ArcToolbox instead of pasting it to the Python window? I've tried already to save it in toolbox as a script but I assume that I did it wrong. I tried to proceed as it is shown here Adding a script tool