As of version 0.20, 'astscript-radial-profile' will only produce a linear profile (where the distances between radial bins are constant). But we can implement custom-scale radial profiles also (where the spacing is different). For example a log-scale radial profile!

As a demonstration, with the commands below, we'll generate a Sersic profile, and generate its radial profile (while keeping the temporary directory). With the following 'astarithmetic' command, we will generate an image where the radial annuli have a log-scale distance between them:

echo "1 500 500 1 100 2.5 0 1 5 10" \
     | astmkprof --mergedsize=999,999 --oversample=1 \
                 --output=sersic.fits

astscript-radial-profile sersic.fits --keeptmp \
         --tmpdir=tmp-radial --output=profile.fits

astarithmetic tmp-radial/apertures.fits log10 10 x uint8 \
              --output=apertures-log.fits

astscript-fits-view --ds9scale=minmax \
                    tmp-radial/apertures.fits apertures-log.fits

The extra 'astarithmetic' command can be added when the user give the option '--scale=log' to the radial profile script. The 'apertures-log.fits' file can then be given to MakeCatalog to generate the log-scaled radial profile. Afterwards (on the output table), we can do the inverse of the operation above (divide by 10, and put to the power of 10) to recover the original radius of each annulus.

Further more, because MakeProfiles accepts custom profiles (see the description of '--customtable' in MakeProfiles profile settings, users can optionally give '--scale=custom.fits' to define any custom method of binning they desire (not just log-scale!).