unifrac.unweighted output

Commands in mothur
1

Hi mothur-makers,

I do not understand the output of the unifrac.unweighted command (1.39.5). I ran:

unifrac.unweighted(tree=c2014.tre,count=c2014.count_table,iters=100,distance=column)

…and got these four files as the output:

c2014.uwsummary
c2014.1.unweighted.ave.dist
c2014.1.unweighted.std.dist
c2014.tre1.unweighted.column.dist

So when I look into the files, *uwsummary and *column.dist contain the same values, whereas *ave.dist file is different.
I assume *ave.dist is an average calculated from all the iterations, but where does than the *uwsummary comes from?

Here are the first 2 lines:
*ave.dist:
BA1b BA1a 0.665693
BA4 BA1a 0.638282

*column.dist:
BA1b BA1a 0.681662
BA4 BA1a 0.640782

Thanks in advance for your help,
L

2

The ave.dist file has the average distances from the rarefaction where as the column.dist has the distances without rarefaction. You want the ave.dist file.

Pat

3

OK, it all makes sense now, thanks!.
L