kinematics {flowcatchR} | R Documentation |
TrajectorySet
object, or a single parameter, or from a single trajectory (all possible combinations)The computed set of parameters include delta.x
, delta.t
and delta.v
(displacements and instantaneous velocity), totalTime
, totalDistance
,
distStartToEnd
, curvilinearVelocity
, straightLineVelocity
and
linearityForwardProgression
, Mean Squared Displacement, velocity
autocorrelation, and more. If a single trajectory is specified, the computation is
performed for that trajectory alone. If a parameter is specified, only that
parameter is reported, either for one or all trajectories
kinematics( trajectoryset, trajectoryIDs = NULL, acquisitionFrequency = 30, scala = 50, feature = NULL )
trajectoryset |
A |
trajectoryIDs |
The ID of a single trajectory |
acquisitionFrequency |
The frame rate of acquisition for the images, in milliseconds |
scala |
The value of micro(?)meters to which each single pixel corresponds |
feature |
Character string, the name of the feature to be computed |
A KinematicsFeaturesSet
object, or a KinematicsFeatures
object,
or an atomic value, or a list(eventually coerced to a vector)
Federico Marini, marinif@uni-mainz.de, 2014
data("candidate.platelets") platelets.trajectories <- trajectories(candidate.platelets) # for all trajectories, all features alltrajs.features <- kinematics(platelets.trajectories) # for one trajectory, all features traj11features <- kinematics(platelets.trajectories,trajectoryIDs = 11) # for all trajectories, one feature alltrajs.curvVel <- kinematics(platelets.trajectories,feature = "curvilinearVelocity")