class_docstr: State-Centric EKF (Extended Kalman Filter) for use with either an NCP
  (Nearly-Constant Position) or NCV (Nearly-Constant Velocity) target dynamic
  model. Stores a target dynamic model, state estimate, and state time.
  Incoming ``Measurement`` provide sensor information for updates.
  
  .. warning:: For efficiency, the dynamic model is only shallow-copied. Make
      a deep copy outside as necessary to protect against unexpected changes.
  
  :param dynamic_model: target dynamic model.
  :param mean: mean of target state estimate.
  :param cov: covariance of target state estimate.
  :param time: time of state estimate.
class_docstr_tok: ["State-Centric","EKF","(","Extended","Kalman","Filter",")","for","use","with","either","an","NCP","(","Nearly-Constant","Position",")","or","NCV","(","Nearly-Constant","Velocity",")","target","dynamic","model",".","Stores","a","target","dynamic","model",",","state","estimate",",","and","state","time",".","Incoming","``","Measurement","``","provide","sensor","information","for","updates",".","..","warning",":",":","For","efficiency",",","the","dynamic","model","is","only","shallow-copied",".","Make","a","deep","copy","outside","as","necessary","to","protect","against","unexpected","changes",".",":","param","dynamic_model",":","target","dynamic","model",".",":","param","mean",":","mean","of","target","state","estimate",".",":","param","cov",":","covariance","of","target","state","estimate",".",":","param","time",":","time","of","state","estimate","."]
docstr: Continuous State time access.
docstr_tok: ["Continuous","State","time","access","."]
code: def time(self):
      """
      Continuous State time access.
      """
      return self._time
  
file_path: pyro/pyro/contrib/tracking/extended_kalman_filter.py
imports: import torch
  from torch.distributions.utils import lazy_property
  import pyro.distributions
  from pyro.distributions.util import eye_like
label_desc: Use image node_id 9 for calling the EKFState obj's underlying member method code with example usage: obj.time() and returns: self