stats prints statistical information for an Ultracam frame, evaluated over a user-defined region as defined by a windows file. The user must also supply a threshold for rejection in order to carry out computation of the mean and RMS after rejection of outliers.
stats image window sigma (median)
| image | --- | Ultracam data file |
| window | --- | A windows file (e.g. as generated by setwin defining the regions to be evaluated. Each CCD is treated separately. NB this is slight overkill; in particular the binning factors are irrelevant and are best set = 1. If you enter 'ALL', it will generate its own windows matching the full frame. |
| sigma | --- | Threshold number of sigma for rejecction in evaluating clipped mean and rms |
| median | --- | true/false to compute the median as well. Switch it off to speed things up if you are not interested in it. |
This command is a member of the classes: Information, Programs.
Author: T.R. Marsh
Created: 10 May 2002
Revised: 02 Feb 2005