[Ifeffit] merging data

[George Sterbinsky]

Hello,

I am observing some behavior in (D)Athena that I do not understand, and I
was hoping someone could explain it to me. I have attached a project file
to illustrate my question. The first two groups in the file have been
normalized such that mu(E) and norm(E) are identical. I then merged these
groups in mu(E) and norm(E), also in the file. Since mu(E) and norm(E) are
the same for the groups, I would expect the data merged in mu(E) and
norm(E) to also be identical, but it is not. While it is clear that merging
in mu(E) is averaging the groups, it seems merging in norm(E) is not. So
what is merging in norm(E) doing?

Thank you,
George
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