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I have seen similar questions but no clear answer and I am afraid that this can't be done in ModelBuilder alone.

Is there a way to truncate the extension off the %name% variable? I am working with .tif and .asc files that I use to resample and do zonal statistics but since they have file extensions the tools throw an error when using %name% and I am forced to use %n% and then rename the files using R. I have tried "%name%"[x:y] as suggested in another question but doesn't work.

Any suggestions? This is ArcMap 10.2 but had the same problem in 10.0

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2 Answers 2

Reset to default
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You could also use "%Name%".replace(".tif","") in Calculate Value in ModelBuilder.

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  • I have same problem. I've alot of tiff files and I want to calculate zonal statistics on polygons in my Shapefile. I am using Arcmap 10.1 how can I use your suggestion please?
    – Muhammad Usman Saleem
    Commented Jan 6, 2022 at 18:08
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You should be able to do this using the Parse Path (ModelBuilder) tool which may have been new at ArcGIS 10.1:

The Parse Path tool parses the input into its file, path, name, or extension. The output can be used as in-line variables in the output name of other tools.

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  • thanks so much for this! I should have asked earlier and saved a ton of time coding this in R!
    – Herman Toothrot
    Commented Dec 18, 2013 at 3:54
  • ok I shouldn't have been so exited so quickly. I am having a problem now that the parsing happens before the iteration moves to the next raster. So result2 has the raster1 name.
    – Herman Toothrot
    Commented Dec 18, 2013 at 4:21
  • If you think this is part of the same initial Question would you be able to edit that to include more details and a diagram of your model, please? If you think it has moved to a new issue then perhaps research/ask it separately.
    – PolyGeo ♦
    Commented Dec 18, 2013 at 4:52

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