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Compute value from more than three consecutive rows

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Top Forums Shell Programming and Scripting Compute value from more than three consecutive rows
# 15  
Old 04-19-2016
@Rudic, I really appreciate your help. Now the first code works but with another issue: I just realize the date isn't continuous for some sites. e.g.
Code:
0023 2014-01-01 21:00 90.0 20
0023 2014-01-01 22:00 80.0 20
0023 2014-01-01 23:00 130.0 20
0023 2014-01-02 16:00 130.0 20
0023 2014-01-02 17:00 200.0 30.3
0023 2014-01-02 18:00 303.0 30.3
0023 2014-01-02 19:00 136.0 25.3

The output from code is:
Code:
0023 2014-01-01 21:00 90.0 20 1
0023 2014-01-01 22:00 80.0 20 1
0023 2014-01-01 23:00 130.0 20 1
0023 2014-01-02 16:00 130.0 20 1
0023 2014-01-02 17:00 200.0 30.3 1
0023 2014-01-02 18:00 303.0 30.3 1
0023 2014-01-02 19:00 136.0 25.3 1

The desired output should be:
Code:
0023 2014-01-01 21:00 90.0 20 1
0023 2014-01-01 22:00 80.0 20 1
0023 2014-01-01 23:00 130.0 20 1
0023 2014-01-02 16:00 130.0 20 2
0023 2014-01-02 17:00 200.0 30.3 2
0023 2014-01-02 18:00 303.0 30.3 2
0023 2014-01-02 19:00 136.0 25.3 2

---------- Post updated at 06:20 PM ---------- Previous update was at 06:15 PM ----------

@RudiC, I also tested the second code by put it in the script after adding the first line
#! /bin/bash
Here is what i got:
Code:
awk: syntax error at source line 7
 context is
	                 >>>  if($4(NF)= <<< 3){
awk: illegal statement at source line 8
awk: illegal statement at source line 8

# 16  
Old 04-20-2016
Wouldn't that "last for more than 3 hours continually"
Code:
0023 2014-01-01 23:00 130.0 20
0023 2014-01-02 16:00 130.0 20

As stated before,
Quote:
Originally Posted by RudiC
add some algorithms to account for the time, but take care of "crossing midnight", which makes the calculation more difficult.
As for RavinderSingh13's code, you didn't copy his proposal correctly. Compare your erroneous code to his post.
# 17  
Old 04-29-2016
@RavinderSingh13, sorry to reply late. I did try the same code and input as you used. And I only get:
site Date time value1 value2
No any data coming out.
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