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Shell Programming and Scripting

write a matrix element, if the "if" condition satisfies

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Top Forums Shell Programming and Scripting write a matrix element, if the "if" condition satisfies
# 8  
Old 08-28-2012
Thanks Rudi, the following code works fine.

Code:
awk '{for (i=2;i<=NF;i++) if (($i-$1)>2 && $i-$(i-1)>2) print "line ", NR, ", field ", i}' infile

How can I change the code, if i need an absolute differences?
Thanks in advance.
Warm regards

[@elixir - Thanks, Yes I need absolute differences]
# 9  
Old 08-28-2012
Welcome, Fredrick, but why don't you phrase your problem correctly in the first place? This is the third modification now...
Code:
awk '{for (i=2;i<=NF;i++)
        if (sqrt (($i-$1)    * ($i-$1))     > 1   &&
            sqrt (($i-$(i-1))* ($i-$(i-1))) > 1 )
            print "[", NR, ",", i,"]"
     }' OFS="" infile

There's copious ways to achieve absolute values; they all are a bit lengthy...
This User Gave Thanks to RudiC For This Post:
Fredrick
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