Please be aware that your data are not a linear function of time; on top of some noise it has a small curvature, and the six data points right after the gap are somewhat lower than they should be (there's a jump in values but not in time delta at point 7).
This is a quick and dirty approximation to exactly your problem and data; no error checking etc. is done. It's sort of a linear interpolation between the given boundaries although we know the boundary to the right is questionable. On top, my mawk has a problem with the D1 > D0 comparison, sometimes the delta is -1E-16, sometimes it's +71E-16, so a few extra lines are being "interpolated". I don't have a good solution at hand; either increase the to be compared value slightly (yuck!) or use sort -u on the result (yuck!)...
However, try
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... (5 Replies)
Hi,
Can anyone help me how can I get the line that between the start time and end time.
file1.txt
15/03/2009 20:45:03 Request: - Data of this line
15/03/2009 20:45:12 Response: - Data of this line
15/03/2009 22:10:40 Request: - Data of this line
15/03/2009 22:10:42 Response: - Data of... (1 Reply)
I am very new to shell scripting. We use C-Shell here and I know the issues that surround it. I hope a solution can be created using awk, sed, etc... instead of having to write a program.
I have an input file that is sorted by date and time in ascending order
... (2 Replies)
Hello All -
I have a script that grabs data from the net and outputs the following data
46029 46.144 -124.510 2010 07 26 22 50 320 4.0 6.0 2.2 9 6.8 311 1012.1 -0.9 13.3 13.5 13.3 - -
46041 47.353 -124.731 2010 07 26 22 50 250 2.0 3.0 1.6 8 6.4 - 1011.6 - ... (0 Replies)
Hi All,
I need help in manipulating the data in first column in a file.
The sample data looks like below,
Mon Jul 18 00:32:52 EDT 2011,NULL,UAT
Jul 19 2011,NULL,UAT
1] All field in the file are separated by ","
2] File is having weekly data extracted from database
3] For eg.... (8 Replies)
I'd like to convert a date string in the form of sun aug 19 09:03:10 EDT 2012, to unixtime timestamp using awk.
I tried
This is how each line of the file looks like, different date and time in this format
Sun Aug 19 08:33:45 EDT 2012, user1(108.6.217.236) all: test on the 17th
... (2 Replies)
Hi Experts ,
I need your help to collect the complete data between two time frame from the log files, when I try awk it's collecting the data only which is printed with time stamp
for example, awk works well from "16:00 to 17:30" but its not collecting <line*> "from 17:30 to 18:00"
... (8 Replies)
I have some time series data that I need to resample or downsample at some specific time intervals. The firs column is time in decimal hours. I am tryiong to resample this data every 3 minutse. So I need a data value ever 0.05. Here is the example data and as you can see, there time slot for 0.1500... (3 Replies)
Hi I am a newbie in awk scripting.
I'm working with a file with xy coordinates that were acquired with a time stamp. All the time stamps were recorded but not the XY coordinates. Let see an example:
FFID X Y UNIX TIME TIMEGAP... (8 Replies)
I have a list of epoch times delimited by "-" as follows:
1335078000 - 1335176700
1335340800 - 1335527400
1335771300 - 1335945600
1336201200 - 1336218000
The corresponding dates are:
20120422 1000 - 20120423 1325
20120425 1100 - 20120427 1450
20120430 1035 - 20120502 1100 ... (3 Replies)
Discussion started by: alex2005
3 Replies
LEARN ABOUT BSD
adjtime
ADJTIME(2) System Calls Manual ADJTIME(2)NAME
adjtime - correct the time to allow synchronization of the system clock
SYNOPSIS
#include <sys/time.h>
adjtime(delta, olddelta)
struct timeval *delta;
struct timeval *olddelta;
DESCRIPTION
Adjtime makes small adjustments to the system time, as returned by gettimeofday(2), advancing or retarding it by the time specified by the
timeval delta. If delta is negative, the clock is slowed down by incrementing it more slowly than normal until the correction is complete.
If delta is positive, a larger increment than normal is used. The skew used to perform the correction is generally a fraction of one per-
cent. Thus, the time is always a monotonically increasing function. A time correction from an earlier call to adjtime may not be finished
when adjtime is called again. If olddelta is non-zero, then the structure pointed to will contain, upon return, the number of microseconds
still to be corrected from the earlier call.
This call may be used by time servers that synchronize the clocks of computers in a local area network. Such time servers would slow down
the clocks of some machines and speed up the clocks of others to bring them to the average network time.
The call adjtime(2) is restricted to the super-user.
RETURN VALUE
A return value of 0 indicates that the call succeeded. A return value of -1 indicates that an error occurred, and in this case an error
code is stored in the global variable errno.
ERRORS
The following error codes may be set in errno:
[EFAULT] An argument points outside the process's allocated address space.
[EPERM] The process's effective user ID is not that of the super-user.
SEE ALSO date(1), gettimeofday(2), timed(8), timedc(8),
TSP: The Time Synchronization Protocol for UNIX 4.3BSD, R. Gusella and S. Zatti
NOTES (PDP-11)Adjtime(2) calls are executed immediately, not over a period of time, therefore, the olddelta return values for an adjtime(2) call will
always be zero.
4.3 Berkeley Distribution May 15, 1986 ADJTIME(2)