usage:
| Option | Type | Description |
|---|---|---|
| --version | None | show program's version number and exit |
| --ali3dold | str | |
| --ali3dnew | str | |
| --path | str | |
| --ali2d | str | |
| --nframe | int | number of frames in the trajectory |
| --maxshift | float | ignore particles with drift/rotation (pixel/degree) larger than this. default 7 |
| --nstd | float | build trajectories from -n x std to n x std of eigenvalues. default is 2 |
| --nptcl | int | number of particle per average. default is 500 |
| --threads | int | threads |