awk script to find min and max value


 
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# 1  
Old 06-06-2014
awk script to find min and max value

I need to find the max/min of columns 1 and 2 of a 2 column file what contains the special character ">".

I know that this will find the max value of column 1.
Code:
awk 'BEGIN {max = 0} {if ($1>max) max=$1} END {print max}' input.file

But what if I needed to ignore special characters in the file. How would I put in that exception?
# 2  
Old 06-06-2014
Pls. post sample input and desired output.
# 3  
Old 06-06-2014
Mention a snap of Raw file as well as expected Op

Didn't get ur Requirement completely, So assuming ur code does your Job,
to avoid special Character, may be u can deploy it as followsSmilie

Code:
awk 'BEGIN {max = 0} {if ($1>max && $1!= ">") max=$1} END {print max}' input.file

# 4  
Old 06-06-2014
INPUT
Code:
>
-123.825   41.999
-123.517   42.000
-123.230   42.007
-122.361   42.017
-120.704   41.997
-120.774   41.854
-120.892   41.778
-121.000   41.726
-121.201   41.680
-121.384   41.354
-121.620   41.452

IDEAL OUTPUT
Code:
LON MIN -123.825 LON MAX -120.704
LAT MIN 41.354  LAT MAX 42.017

---------- Post updated at 03:55 PM ---------- Previous update was at 02:40 PM ----------

I found my solution with GMT's minmax option.

Thanks!
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