flyfigures: Track segmentation and realignment
In PaolaCognigni/CTraxHelper: CTrax Helper

Description Usage Arguments Details Value

Aligns stepsize consecutive frames from each start to a reference coordinate system where start is always (0,0) and end is always (x,0).

1	flyfigures(trx, stepsize = 6, output = "list")

`trx`	a track data frame
`stepsize`	the size of the time window (in frames)
`output`	whether to output the minimal data (a matrix containing the x,y data as the real and imaginary parts of a complex number) or a more intuitive but somwehat fiddlier list format.

From each frame, stepsize frames are selected and the position data (x and y) are aligned (shifted and rotated) to a common reference system, yielding transformed x and y. These are collected into a matrix of frame by stepsize elements (thus oversampling the data).

either a frame by stepsize complex matrix (if output='complex') where Re is x and Im is y, or a list containing a matrix for x, one for y, and vectors for id and starttime to match each matrix row to a frame and fly unambiguosly.