project_waypoints {dynwrap} R Documentation

## Project waypoints of a trajectory (e.g. milestones) into a space defined by cells (e.g. expression or a dimensionality reduction)

### Description

This will first calculate the geodesic distance of each cell to the waypoint. This distance is used as a weight

### Usage

project_waypoints(
trajectory,
space,
waypoints = select_waypoints(trajectory),
trajectory_projection_sd = sum(trajectory$milestone_network$length) * 0.05
)


### Arguments

 trajectory The trajectory as created by infer_trajectory() or add_trajectory() space A matrix with cells in rows and different dimensions in the columns. This is typically an expression matrix or a dimensionality reduction waypoints A set of waypoints, which can be created by select_waypoints(). It is a list containing: waypoints: a dataframe containing in the very least the waypoint_id milestone_percentages: the positions of waypoints withing the trajectory geodesic_distances: matrix with precalculated geodesic distances between waypoints (rows) and cells (columns), optional trajectory_projection_sd The standard deviation of the gaussian kernel

### Value

A matrix in which the waypoints (rows) were projected into a new space defined by the same number of dimensions (columns) as in the space argument

[Package dynwrap version 1.2.2 Index]