Calculate weighted unitary displacement vectors under embedding.
This function matches scTour's vector_field_embedding exactly.
The calculation borrows the ideas from scvelo.
Usage
vector_field_embedding(T_mat, E, scale = 10, self_transition = FALSE)
Arguments
- T_mat
Cosine similarity sparse matrix (from cosine_similarity)
- E
Embedding matrix (cells x 2)
- scale
Scale factor for cosine similarity (default: 10)
- self_transition
Include self-transition (default: FALSE)
Value
Matrix of displacement vectors