**fScan Reference Manual, Chapter 2 (CmdLineOptions): stability**
===== Stability -- Calculate displacements of center-of-mass=====
**usage:** -stability flag outname refimg slice maxpct levelmm levelpct1 levelpct2
===== =====
  * FLAG - can take on the following values:
    * 0 - read dx/dy values for registration; OUT is treated as IN file/rec
    * 1 - generate dx/dy/dz plots for each time point
    * 2 - generate dx/dy/di plots for each slice separately
    * 4 - censor images where dx or dy is greater than MAXPCT
    * 010 - print volume motion parameters
    * 020 - print image motion parameters
    * 040 - motion censor data by volume (default is by image)
    * 0100 - report global X/Y motion values (mean, stdev, max)
    * 0200 - use the most frequent position as reference (otherwise use mean value)
    * 0400 - do statistics
    * 01000 - create a point ROI at the image center-of-mass for the central timepoint
    * 04000 - censor MAXPCT is maximum fraction of all images to censor 
    * 3 - generate all plots (default)
  * REFIMG - reference time point for image registration (default=0) 
  * SLICE - If specified, only that slice is done, otherwise all.
  * MAXPCT - Used when motion censoring (FLAG & 4). Images with displacement greater than MAXPCT of a voxel will be omitted from further analysis (default MAXPCT = 50% for images, 30% if censoring volumes(flag 32)). If FLAG 0400 set, displacement minimum is default (50% img/30% vol) but that threshold is increased if necessary such that no more than MAXPCT of all images are censored.
  * LEVELMM - minimum motion level for reporting percent of images moved (default: 1 mm)
  * LEVELPCT1 - (default: 5)
  * LEVELPCT2 - (default: 20)

**See Also:**\\
[[jvs:fscan|fScan Home]], 
[[jvs:fscan:manual|fScan Manual]], 
[[jvs:fscan:manual:chapter2|CmdLineOptions]], 
[[jvs:fscan:manual:help|Manual Help]]