calculate the average of time series data using AWK Post: 302271341

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Top Forums Shell Programming and Scripting calculate the average of time series data using AWK Post 302271341 by nica on Wednesday 24th of December 2008 10:48:07 PM

12-24-2008

Registered User

Hi,

I have another request..

here, V2 is a counter
I want to match V2 value with the V1 value with the same time series (t1) before V2 counter get reset to "1"..
e.g. 1,2,3,1 ---> I want to get value of V1 when value of V2 is "3" (before reset to "1")
or
e.g. 1,2,1,1,1, ---> I want to get the value of V1 when value of V2 are "2" followed by three consecutive "1"

Input File:

t1 V1 t2 V2
10.000000 4.387413 10.139355302 1
10.100000 4.397372 10.252770182 2
10.200000 4.406951 10.398060182 1
10.300000 3.940732 10.515105302 1
10.400000 4.044359 10.645365302 1
10.500000 4.139778 10.768800182 2
10.600000 4.222087 10.929725222 3
10.700000 4.299174 11.106285302 1
10.800000 2.941378 11.216505302 1
10.900000 3.081282 11.324910182 2
11.000000 3.219284 11.626115222 3
11.100000 3.354575 11.822715302 4
11.200000 3.486347 11.968005302 5
11.300000 3.613792 12.107075222 1
11.400000 3.730119 12.233535302 1
11.500000 3.846800 12.377615222 1
11.600000 3.956768 12.494055302 1
11.700000 4.059215 12.642540182 1
11.800000 4.153333 12.742740182 1
11.900000 4.234293 12.853565222 1
12.000000 4.309844 13.093440182 1
..............
..............

Desired Output:

t1 V1 V2
10.200000 4.406951 2
10.300000 3.940732 1
10.500000 4.139778 1
10.900000 3.081282 3
11.100000 3.354575 1
11.900000 4.234293 5
...............
...............

nica

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LEARN ABOUT CENTOS

igawk

IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME

       igawk - gawk with include files

SYNOPSIS

       igawk [ all gawk options ] -f program-file [ -- ] file ...
       igawk [ all gawk options ] [ -- ] program-text file ...

DESCRIPTION

       Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).

       AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like

	      @include getopt.awk

       in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.

OPTIONS

       See gawk(1) for a full description of the AWK language and the options that gawk supports.

EXAMPLES

       cat << EOF > test.awk
       @include getopt.awk

       BEGIN {
	    while (getopt(ARGC, ARGV, "am:q") != -1)
		 ...
       }
       EOF

       igawk -f test.awk

SEE ALSO

       gawk(1)

       Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.

AUTHOR

       Arnold Robbins (arnold@skeeve.com).

Free Software Foundation					    Nov 3 1999								  IGAWK(1)

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