# \#sampling

**URL:** https://discourse.itk.org/tag/sampling/222.md

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## [Difference between RANDOM, REGULAR and NONE sampling](https://discourse.itk.org/t/difference-between-random-regular-and-none-sampling/5365)

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**Author:** [@debapriya](https://discourse.itk.org/u/debapriya)\
**Replies:** 3\
**Last updated:** [September 27, 2022, 6:57pm UTC](https://discourse.itk.org/t/difference-between-random-regular-and-none-sampling/5365 "2022-09-27T18:57:06Z")

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I have run the same registration code snippet, with the same data and same sampling strategy, multiple times. I get different result each time. With RANDOM sampling, this is understandable, but why should REGULAR and NON…