update merge code

import numpy as np

import os

from astropy.table import Table

import sys

multiFileDir = '/nfsdata/share/CSSOSDataProductsSims/C10_refCat/1/'

if len(sys.argv) < 3:

	# print('usage:\n'+sys.argv[0]+' survey_result.txt')

	sys.exit(0)

multiFileDir = str(sys.argv[1])

outDir = str(sys.argv[2])

# multiFileDir = '/nfsdata/share/CSSOSDataProductsSims/C10_refCat/1/'

mergeKeys = ['parallax1',

        for key in mergeKeys:

            mergeTable[key] = mergeTable[key] + tTab[key]

mergeTable.write(outFn,overwrite = True)

mergeTable.write(os.path.join(outDir,outFn),overwrite = True)