*filename*
- Name of IRAF image header file or FITS file. This must be present.
*x range*
- Range of x coordinate values. If 0, sum across all columns.
*y range*
- Range of y coordinate values. If 0, sum across all rows.
**-d**
- Compute and print standard deviation
*(Added in version 2.6.8)*
**-m**
- Compute and print mean
*(Added in version 2.6.8)*
**-n**
- Number of decimal places in output
*(Added in version 2.6.11)*
**-r**
- Compute and print variance (sum of squares)
*(Added in version 2.6.8)*
**-s**
- Compute and print sum (default)
*(Added in version 2.6.8)*
**-v**
- Print more information about the process

#### Last updated 19 May 2014 by
Jessica Mink

[**sumpix** examples]