'datatable_Andreani2018_Table1.txt' is taken from
Andreani et al. 2018 arxiv.org source package file: "TableData-new.tex"
and reformatted by dzliu.


'datatable_Hughes2013.txt' is taken from 
Hughes et al. 2013 online data: http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/550/A115
and reformatted by dzliu.



then cross-matching 
'datatable_Andreani2018_Table1.txt'
to 
'datatable_Hughes2013.txt'
by exact 
'ID' column in 'datatable_Andreani2018_Table1.txt'
and 
'ID' column in 'datatable_Hughes2013.txt'
for best match for each table 1 row
and join 1 and 2
we got 161 matches

then set
'Metallicity' column = 'METALZ' column
'Metallicity_Err' column = 'E_METALZ' column
'Metallicity_Ref' column = "Hughes,2013A&A...550A.115H"

then output as
'datatable_Andreani2018_Table1_with_Hughes2013_metallicity.fits'


