def transform_raw_abundance(biomf, fn=math.log10, sampleIDs=None, sample_abd=True):
totals = raw_abundance(biomf, sampleIDs, sample_abd)<EOL>return {sid: fn(abd) for sid, abd in totals.items()}<EOL>
Function to transform the total abundance calculation for each sample ID to another
format based on user given transformation function.

:type biomf: A BIOM file.
:param biomf: OTU table format.

:param fn: Mathematical function which is used to transform smax to another format.
           By default, the function has been given as base 10 logarithm.

:rtype: dict
:return: Returns a dictionary similar to output of raw_abundance function but with
         the abundance values modified by the mathematical operation. By default, the
         operation performed on the abundances is base 10 logarithm.