calculate the average of time series data using AWK Post: 302270893

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Top Forums Shell Programming and Scripting calculate the average of time series data using AWK Post 302270893 by nica on Tuesday 23rd of December 2008 07:18:10 AM

12-23-2008

Registered User

calculate the average of time series data using AWK

Hi,

I have two time series data (below) merged into a file.
t1 and t2 are in unit of second

I want to calculate the average of V1 every second and count how many times "1" in V2 is occur within a second

Input File:

t1 V1 t2 V2
10.000000 4.387413 10.139355302 1
10.100000 4.397372 10.252770182 1
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 1
10.600000 4.222087 10.929725222 1
10.700000 4.299174 11.106285302 1
10.800000 2.941378 11.216505302 1
10.900000 3.081282 11.324910182 1
11.000000 3.219284 11.626115222 1
11.100000 3.354575 11.822715302 1
11.200000 3.486347 11.968005302 1
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
12.100000 2.107283 13.209275222 1
12.200000 2.234828 13.343940182 1
12.300000 2.371988 13.471005302 1
12.400000 2.511328 13.635125222 1
12.500000 2.652041 13.824900182 1
12.600000 2.793317 13.955160182 1
12.700000 2.934348 14.082225302 1
12.800000 3.067364 14.185620182 1
12.900000 3.205592 14.302665302 1
13.000000 4.130738 14.421090182 1
13.100000 3.929949 14.707265222 1
13.200000 2.160613 14.828715302 1
13.300000 2.296229 14.938935302 1
13.400000 2.434470 15.114285302 1
13.500000 2.574528 15.242730182 1
13.600000 3.865811 15.485025302 1
13.700000 4.273357 15.660375302 1
13.800000 4.357861 15.895845302 1
13.900000 4.371735 16.034310182 1
14.000000 4.377158 16.150145222 1
..............
..............

Desired Output:

t1 V1 V2
10.000000 3.986053 7
11.000000 3.765453 6
12.000000 2.818793 7
13.000000 3.439529 7
...............
...............

Please, can anyone tell me AWK code for calculating this..??

Thanks

nica

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highlight_string

HIGHLIGHT_STRING(3)							 1						       HIGHLIGHT_STRING(3)

highlight_string - Syntax highlighting of a string

SYNOPSIS

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DESCRIPTION

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PARAMETERS

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RETURN VALUES

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EXAMPLES

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	      highlight_string(3) example

	      <?php
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	       The above example will output (in PHP 4):

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SEE ALSO

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PHP Documentation Group 												       HIGHLIGHT_STRING(3)

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