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I'm trying to reclass 3000, 2000, 1000 and 0.5 into 1, 2, 3 and 4 respectively in a new field using field calculator. However it keeps returning an error message and I can't figure out why, any ideas?

def Reclass( !BUFF_DIST! ):
    if !BUFF_DIST! = 3000:
        return 1
    else if (!BUFF_DIST!) = 2000:
        return 2
    else if (!BUFF_DIST!) = 2000:
        return 3
    else: 
        return 4
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  • (4000-v)/1000 will yield correct result on integer field. – FelixIP Jan 1 '18 at 8:34
3

Use Python parser and call the function with the actual field name enclosed in !!. BUFF_DIST=

Reclass(!BUFF_DIST!)

When you define the function use whatever name you want, for example buffdist. Also change = to == and else if to elif. Pre-Logic script code:

def Reclass( buffdist ):
    if buffdist == 3000:
        return 1
    elif buffdist == 2000:
        return 2
    elif buffdist == 1000:
        return 3
    else: 
        return 4
Improve this answer
  • Thank you for your reply! I've just tried it and it still returns an error message. Just to clarify I've put that into a Python Praser with the type set as Number with no codeblock. – user111848 Dec 31 '17 at 14:26
  • You need the code block – BERA Dec 31 '17 at 14:27
  • 1
    That's worked now thank you! From there i'm trying to convert that into a raster in order to input it into model. However when i convert the polygon file to raster with the field being risk, it only returns one value for the whole raster instead of the 4 separate values. Is there a way to overcome this? – user111848 Dec 31 '17 at 14:33
  • 1
    Nice accept my answer with the checkbox please. Post a new question for that – BERA Dec 31 '17 at 14:37

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