# Radiomic features with identical values

**URL:** <https://discourse.slicer.org/t/radiomic-features-with-identical-values/18188>\
**Category:** Radiomics\
**Created:** [June 17, 2021, 2:38pm UTC](https://discourse.slicer.org/t/radiomic-features-with-identical-values/18188 "2021-06-17T14:38:34Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Gergely\_Orsi](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/gergely_orsi/32/11290_2.png) [@Gergely\_Orsi](https://discourse.slicer.org/u/Gergely_Orsi)\
**Post date:** [June 17, 2021, 2:38pm UTC](https://discourse.slicer.org/t/radiomic-features-with-identical-values/18188/1 "2021-06-17T14:38:34Z")

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Dear Community Members,

I do not have too much prior experience with pyradiomics, so sorry for the dull question.

I have several features with identical values and I’d like to know if it’s ok, or not.

Examples:  
In Gray Level Size Zone Matrix (GLSZM) Features:  
Small Area Low Gray Level Emphasis (SALGLE) is equal with Small Area High Gray Level Emphasis (SAHGLE) and with Zone Entropy (ZE).

original\_glrlm\_ShortRunHighGrayLevelEmphasis and original\_glrlm\_ShortRunLowGrayLevelEmphasis and original\_glszm\_GrayLevelNonUniformity are also equal.

Is this normal?

Thank you,

Gergő

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**Author:** ![Gergely\_Orsi](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/gergely_orsi/32/11290_2.png) [@Gergely\_Orsi](https://discourse.slicer.org/u/Gergely_Orsi)\
**Post date:** [July 25, 2021, 6:12am UTC](https://discourse.slicer.org/t/radiomic-features-with-identical-values/18188/2 "2021-07-25T06:12:12Z")

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Up!

Any help would be appreciated.

Thank you,

Gergő

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**Author:** ![JoostJM](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/joostjm/32/1091_2.png) [@JoostJM](https://discourse.slicer.org/u/JoostJM)\
**Post date:** [January 21, 2022, 10:11am UTC](https://discourse.slicer.org/t/radiomic-features-with-identical-values/18188/3 "2022-01-21T10:11:54Z")

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I’m not sure, please take a look at the diagnostic features. Is there adequate range of gray values in your image? are you using a corresponding bin width (about 1/10 to 1/100th of the firstorder range)?

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**Author:** ![Gergely\_Orsi](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/gergely_orsi/32/11290_2.png) [@Gergely\_Orsi](https://discourse.slicer.org/u/Gergely_Orsi)\
**Post date:** [January 21, 2022, 10:21am UTC](https://discourse.slicer.org/t/radiomic-features-with-identical-values/18188/4 "2022-01-21T10:21:33Z")

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Dear Joost Van Griethuysen,

Thank you for the reply. I’ve postes some 6 months ago so I have to take a closer look on Monday to answer all your questions.

But again, thank you for the reply.

Gergő