Selecting highest value within a range Post: 302740523

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Top Forums UNIX for Dummies Questions & Answers Selecting highest value within a range Post 302740523 by markymarkg123 on Thursday 6th of December 2012 09:50:32 AM

12-06-2012

Registered User

Selecting highest value within a range

Within millions of lines of data, there are perhaps 20 "spikes" that are very narrow. I want only the highest value from each spike within a range of 10 rows. Possible?

My data looks like this, 8 columns of integers, millions of rows. There are clear spikes when you graph columns.

Code:

2.14883e+05  1.22992e+05  7.96926e+03  -1.37694e+03  3.95054e+03  -1.62924e+04  8.21638e+03  1.01061e+04  
2.14357e+05  1.22730e+05  8.20939e+03  -1.54033e+03  4.28164e+03  -1.61322e+04  7.97054e+03  1.01922e+04  
2.13361e+05  1.22889e+05  8.05019e+03  -1.18045e+03  4.02582e+03  -1.61925e+04  7.99161e+03  1.02380e+04  
2.68777e+05  1.17178e+05  5.12913e+04  -1.40305e+04  2.95355e+04  -2.65120e+04  2.14739e+04  9.34042e+03  
4.09316e+05  1.80414e+05  5.32998e+04  -1.06297e+04  3.04299e+04  -2.75763e+04  2.09896e+04  8.12131e+03  
4.94380e+05  2.46756e+05  1.36658e+04  6.56373e+03  6.79386e+03  -1.70254e+04  7.70163e+03  9.14013e+03  
4.92551e+05  2.48154e+05  1.39390e+04  6.94251e+03  6.73128e+03  -1.65537e+04  7.33397e+03  9.21148e+03  
4.91403e+05  2.48659e+05  1.49110e+04  6.85990e+03  7.53969e+03  -1.67406e+04  7.14302e+03  9.71328e+03  
4.89192e+05  2.52866e+05  1.39238e+04  8.07381e+03  7.38389e+03  -1.64431e+04  6.44513e+03  1.00028e+04  
4.90260e+05  2.47635e+05  1.45364e+04  6.72570e+03  7.24393e+03  -1.69678e+04  6.90001e+03  1.01961e+04

Currently, my code will give me all the consecutive-row increases in column 1 over a specified value of 5000:

Code:

awk '(NR>1) && (d=$1-x)>=5000 {print "increase of" " " d, "at Line" " " 'NR' " "}{x=$1}' test | sort -n

The output looks like this:
increase of 140539 at Line 5
increase of 55416 at Line 4
increase of 85064 at Line 6

However, I want the output to look like this, filtering out the smaller increases within that data range:
increase of 140539 at Line 5
increase of 5662 at Line 48924
increase of 10334 at Line 589332
...

markymarkg123

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test::bdd::cucumber::model::line

Test::BDD::Cucumber::Model::Line(3pm)			User Contributed Perl Documentation		     Test::BDD::Cucumber::Model::Line(3pm)

NAME

       Test::BDD::Cucumber::Model::Line - Model to represent a line in a feature file

VERSION

       version 0.11

DESCRIPTION

       Model to represent a line in a feature file

ATTRIBUTES

   number
       The line number this line represents

   document
       The Test::BDD::Cucumber::Model::Document object this line belongs to.

   raw_content
       The content of the line, unmodified

METHODS

   indent
       Returns the number of preceding spaces before content on a line

   content
       Returns the line's content, with the indentation stripped

   content_remove_indentation
       Accepts an int of number of spaces, and returns the content with exactly that many preceding spaces removed.

   debug_summary
       Returns a string with the filename and line number

   filename
       Returns either the filename, or the string "[String]" if the document was loaded from a string

   is_blank
   is_comment
       Return true if the line is either blank, or is a comment.

AUTHOR

       Peter Sergeant "pete@clueball.com"

LICENSE

       Copyright 2011, Peter Sergeant; Licensed under the same terms as Perl

perl v5.14.2							    2012-05-20				     Test::BDD::Cucumber::Model::Line(3pm)

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