> Reference > > dynwrap :: Adapting a trajectory model > Add or create a dimensionality reduction

Add or create a dimensionality reduction

add_dimred(dataset, dimred, dimred_milestones = NULL,
  dimred_segment_progressions = NULL, dimred_segment_points = NULL,
  connect_segments = FALSE, expression_source = "expression", ...)

is_wrapper_with_dimred(dataset)

get_dimred(dataset, dimred = NULL, expression_source = "expression")

Arguments

dataset	A dataset created by `wrap_data()` or `wrap_expression()`
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.
dimred_segment_progressions	An optional progression matrix of the trajectory segments. Format: `tibble(from, to, percentage)`
dimred_segment_points	An optional dimensionality reduction of the trajectory segments. Format: `matrix(Comp1, Comp2, ...)`.
connect_segments	Whether to connect segments between edges
expression_source	The source of expression, can be "counts", "expression", an expression matrix, or another dataset which contains expression
...	extra information to be stored in the wrapper