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Field Calculation Question

RyanHinesley

I have a name field attributed with a string that has a hyphen in the middle...

'text1... - text2...'

I want to use the field calculator to calculate another field based on everything to the right of the hyphen, excluding the hyphen and everything to the left so the result will look like this...

'text2...'

Note that the number of characters for text1 and text2 is variable throughout the feature class so the RIGHT and LEFT functions will not work. Any ideas without having to revert to a python script?

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Accepted answers

AntGiles

Ryan,

Use an expression in the calculate field similar to :

Left of -

left([fieldname],instr([fieldname],"-")-1)

Right of -

Mid([fieldname],instr([fieldname],"-"),len([fieldname] - instr([fieldname],"-")

Or

Right([fieldname],len([fieldname] - instr([fieldname],"-"))

the instr function gives the position of a text string within another, and the left function extracts a string from another one, as does mid & right

Regards

Anthony

All comments

StewartGalloway

wow, thanks Dan.

DanPatterson_Retired

" ".join(a.split(", ").__reversed__())

where 'a' can be substituted with !YourFieldName!

use the python parser of course.

StewartGalloway

Anthony,

Can a version of your code help me to switch names within a field? From "Smith, John" to "John Smith".

thanks.

Stew

AntGiles

Ryan,

Glad it worked, please don't forget to mark the post as answered,

Regards

Anthony

RyanHinesley

Worked perfectly. Thanks so much.

Ryan

AntGiles

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