| velocity_x | R Documentation | 
Compute velocity for points on x-axis for given data frame in OpenPoseR format according to the following formula: ((pixel at t1)-(pixel at t1-1))/((t1)-(t1-1))
velocity_x(data, model, fps = 25)
data | 
 A data frame with separate clumns for every points x, y, and c values (OpenPoseR format).  | 
model | 
 Specify which tracking model generated the data. Supply either body25, hands, or face.  | 
fps | 
 Frames per second of the original video file. Defaults to 25.  | 
velocity_x(x, "body25")
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