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field calculator - copying field without last letter/number

MassimoSpirlandelli

I have to copy a field (text) into another field (text) except the last letter/number.

For istance:

in field "A" with attribute "1111A"

I want to get just 1111 in field "B"

how can I do it?

thank you in advance.

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Accepted answers

SepheFox

Hi Massimo, in the field calculator, choose the Python parser, and type:

!A![:-1]

All comments

DanPatterson_Retired

"1111A" is the value

In python for example

>>> a = "1111A"

>>> b = a[:-1]

>>> b

'1111'

>>>

so in the field calculator, you would setup a new field probably text if you can't guarantee all the slicing will be numeric, then use the field calculator syntax with the python parser selected a

oldfield[:-1]

the : means everything up to and -1 means the last one (counting backward from the end. There is a whole section on field calculations in the online help files... ie from the 10.3 help Fundamentals of field calculations—Help | ArcGIS for Desktop