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single-cell RNA velocity generalized to transient cell states

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scVelo - single-cell RNA velocity generalized to transient cell states

scVelo is a scalable toolkit for estimating and analyzing RNA velocities in single cells using dynamical modeling.

RNA velocity, the time derivative of mRNA abundance, enables you to infer directionality in your data by superimposing splicing information. The main principles have been presented in La Manno et al. (2018), and are based on a deterministic steady-state model of transcriptional dynamics. scVelo provides two extensions: A stochastic model that incorporates second-order moments, and a dynamical model that captures the full splicing kinetics. It thereby adapts RNA velocity to widely varying specifications such as non-stationary populations.

It is compatible with scanpy (Wolf et al., 2018). Making use of sparse implementation, iterative neighbors search and other techniques, it is remarkably efficient in terms of memory and runtime without loss in accuracy and runs easily on your local machine (30k cells in a few minutes).

Install from PyPI:

pip install -U scvelo

See the the documentation at for details, which includes:

Your feedback, in particular any issue you stumble upon, is highly appreciated and addressed to

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