09-12-2012
merging horizentally
Dear all,
I would like to merge around 600 files, they all have 4 colomns: the first three columns are the same in each file and want to add the 4th colomn from each file. like the example below. any help please, thank you
I tried paste but it didnt work
file 1
ID1 ID2 ID3 rank
10 100 1000 0.16
11 200 2000 0.27
12 300 3000 0.33
13 400 4000 0.46
15 500 5000 0.58
file 2
ID1 ID2 ID3 rank
10 100 1000 0.62
11 200 2000 0.88
12 300 3000 0.66
13 400 4000 0.72
15 500 5000 0.16
file 1+2+3...600
ID1 ID2 ID3 rank rank
10 100 1000 0.16 0.62
11 200 2000 0.27 0.88
12 300 3000 0.33 0.66
13 400 4000 0.46 0.72
15 500 5000 0.58 0.16
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