# Cell Rank Data Set requirements

**URL:** <https://discourse.scverse.org/t/cell-rank-data-set-requirements/855>\
**Category:** cellrank\
**Created:** [October 22, 2022, 9:05am UTC](https://discourse.scverse.org/t/cell-rank-data-set-requirements/855 "2022-10-22T09:05:51Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sim](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.scverse.org/sim/32/38_2.png) [@sim](https://discourse.scverse.org/u/sim)\
**Post date:** [October 22, 2022, 9:05am UTC](https://discourse.scverse.org/t/cell-rank-data-set-requirements/855/1 "2022-10-22T09:05:51Z")

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Dear scverse team,  
I just saw the cellrank tool, and find it very interesting and exciting!

I would like to apply it to one of the data sets and have two questions to the experts:

1. Does the data need to be in a specific format? Which RNA count data in the h5ad object is used - the processed or the raw counts or? Basically the question is how applicable is it to ‘any’ dataset?

2. Any objections/ concerns around single cell and single nuclei data sets? Or doesnt it matter?

Thanks a lot and looking forward to your input,  
best wishes,  
Simon

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**Author:** ![Marius1311](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.scverse.org/marius1311/32/193_2.png) [@Marius1311](https://discourse.scverse.org/u/Marius1311)\
**Post date:** [October 23, 2022, 8:48am UTC](https://discourse.scverse.org/t/cell-rank-data-set-requirements/855/2 "2022-10-23T08:48:32Z")

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Hi Simon, thanks for your question.  
Re 1, please check out our CellRank tutorials, we explain that in there.  
Re 2, this is an scVelo question, please go through open/closed scVelo issues to find your answer.

Best wishes  
Marius