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Old 01-28-2017, 01:48 AM   #1
hoi
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How to count different number in a column and print that value?

I have data like this..

0.493
0.493
0.493
0.500
0.500
0.702
0.702
0.702
0.702
0.800
0.800
0.866
0.866
0.866
0.866
0.866
0.866

The frequency(the number of same patern) of the number is not known to me. I want to extract the below information

0.493 3
0.500 2
0.702 4
0.800 2
0.866 6

I would greatly appreciate any help.
 
Old 01-28-2017, 02:02 AM   #2
astrogeek
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Linux has a command which does just that (output column order is reversed from your example).

See...

Code:
man uniq
 
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Old 01-28-2017, 02:02 AM   #3
syg00
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Associative array - bash, awk, perl, ...
 
Old 01-28-2017, 04:34 AM   #4
hoi
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Quote:
Originally Posted by astrogeek View Post
Linux has a command which does just that (output column order is reversed from your example).

See...

Code:
man uniq
Thank you very much. 'uniq -c' command solved it.
 
Old 01-28-2017, 04:42 AM   #5
grail
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