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1) Not conforming the parameter interface standard proposed by James Peachey.
gtselect
- input_file should be renamed to evfile.
- evtable missing.
- output_file should be renamed to outfile.
count_map
- infile should be renamed to evfile.
- table should be renamed to evtable.
- clobber and mode should default to h (hidden).
exposure_cube
- infile should be renamed to scfile.
- table should be renamed to sctable.
- clobber and mode should default to h (hidden).
exposure_map
- infile should be renamed to scfile.
- table should be renamed to sctable.
2) The version number is not displayed by count_map, exposure_cube, and exposure_map. They report like "count_map: INFO: This is count_map version unknown" (for the case of count_map) and no specific version number is displayed for users.
3) Poor explanations of parameters for exposure_map. The meaning of "layers", "emin", and "eratio" are not clear. Explain them somewhere, e.g., in their prompts, on the web page(s), or in its user guide.
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