Constructs a trajectory by projecting cells within a dimensionality reduction onto a backbone formed by a milestone network. Optionally, a cell grouping can be given which will restrict the edges on which a cell can be projected.

This function will generate the milestone_network and progressions.

add_dimred_projection(model, milestone_ids = NULL, milestone_network,
  dimred, dimred_milestones, grouping = NULL, ...)

Arguments

model	The model to which the trajectory will be added.
milestone_ids	The ids of the milestones in the trajectory. Type: Character vector.
milestone_network	The network of the milestones. Type: Data frame(from = character, to = character, length = numeric, directed = logical).
dimred	The dimensionality reduction matrix (with cell_ids as rownames) or function which will run the dimensionality reduction
dimred_milestones	An optional dimensionality reduction of the milestones.
grouping	A grouping of the cells, can be a named vector or a dataframe with group_id (character) and cell_id (character)
...	extra information to be stored in the wrapper.

The trajectory model