hist plots a histogram of a CCD of a frame or set of frames, evaluated over a user-defined region defined with a windows file.
hist [device] [dump] data window nccd nhist x1 x2 (y1 y2)/(output)
| device | --- | Plot device |
| dump | --- | Dump to disk file or not, as opposed to plotting. |
| data | --- | Ultracam data file or list of data files (ucm only) |
| window | --- | A windows file (e.g. as generated by setwin defining the regions to be evaluated. Each CCD is treated separately. Enter 'ALL' to select everything. |
| nccd | --- | CCD number |
| nhist | --- | Number of points in histogram |
| normalise | --- | true to divide all values by the total number, i.e to get a PDF. |
| x1 | --- | Lower x limit. This is the left-edge of the first bin. |
| x2 | --- | Upper x limit. This is the right-edge of the last bin. Enter x1=x2 to get automatic choice. If you select x2=x1+n*nhist where n is an integer, then the bins will be exactly n in width. |
| y1 | --- | Lower y limit. |
| y2 | --- | Upper y limit. Enter y1=y2 to get automatic choice |
| output | --- | File to dump to, if not plotting. Will be 3 colums, value, number and sqrt(max(1,number) as an approximate uncertainty. |
This command is a member of the classes: Information, Programs.
Author: T.R. Marsh
Created: 10 May 2002