From dk401 at pku.edu.cn Wed Mar 16 04:50:58 2011 From: dk401 at pku.edu.cn (=?gb2312?B?tcu/rQ==?=) Date: Wed, 16 Mar 2011 19:50:58 +0800 Subject: [SAC-HELP] A question about SAC data Message-ID: <000001cbe3d0$6a54b4b0$3efe1e10$@pku.edu.cn> I am confused that if I had a set of SAC data whose ?IDEP? item in the head is unknown, then how could I get to know this item? Thank you for your help. -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: image/jpeg Size: 2950 bytes Desc: not available URL: From ktenidou at civil.auth.gr Wed Mar 16 05:13:17 2011 From: ktenidou at civil.auth.gr (Olga Joan Ktenidou) Date: Wed, 16 Mar 2011 14:13:17 +0200 Subject: [SAC-HELP] Question: maximum nimber of items in a list for "do" command Message-ID: <20110316141317.89964ovogtijxvml@webmail.auth.gr> Dear SAC community, just wondering whether anyone knoew the limit to the number of items (N) one can place in a list of this sort in a macro that uses the "do" command: do i list 1 2 3 4 5 ... N??? ....commands...... enddo Thanks a lot, olga Olga-Joan KTENIDOU IRSN/DEI/SARG/BERSSIN BP 17 - 92262 Fontenay-aux-Roses Cedex T?l. ++33 (0)1 58 35 88 05 From ana.domingues at ist.utl.pt Fri Mar 18 05:45:50 2011 From: ana.domingues at ist.utl.pt (Ana Domingues) Date: Fri, 18 Mar 2011 12:45:50 +0000 Subject: [SAC-HELP] Problem using the transfer function Message-ID: Hi, I am with some problems when I'm using the transfer function. I've tried with another computer with the same version of SAC and it's working. But in my computer it appears the following error: SAC> transfer from polezero s SAC_PZs_IP_PMST_BHE__2009.091.00.00.00.0000_99999.9999.24.60.60.99999 to none ERROR 2110: Illegal option in POLEZERO file: I don't understand the error. Can you help me with this problem? Thanks a lot Best Regards Ana Domingues -------------- next part -------------- An HTML attachment was scrubbed... URL: From snoke at vt.edu Fri Mar 18 06:33:25 2011 From: snoke at vt.edu (Arthur Snoke) Date: Fri, 18 Mar 2011 09:33:25 -0400 (EDT) Subject: [SAC-HELP] Problem using the transfer function In-Reply-To: References: Message-ID: One thing to check is line endings, which differ depending on the OS. What is the operating system for the computer with a problem? Is it the same as on the computers that work? You can test for the type of line endings by doing something like od -ta JCC.bhz.pz | less 0000000 Z E R O S sp 3 nl P O L E S sp 5 nl 0000020 - 0 . 0 3 7 0 sp sp 0 . 0 3 7 0 nl If you get anything other than "nl" at the end of each line, that may be the problem. Not related to your problem, but I suggest you add something like FREQ 0.004 0.007 0.2 0.4 to your command. See the discussion in http://www.iris.edu/software/sac/commands/transfer.html On Fri, 18 Mar 2011, Ana Domingues wrote: > Hi, > > I am with some problems when I'm using the transfer function. I've tried > with another computer with the same version of SAC and it's working. But in > my computer it appears the following error: > > SAC> transfer from polezero s > SAC_PZs_IP_PMST_BHE__2009.091.00.00.00.0000_99999.9999.24.60.60.99999 to > none > ?ERROR 2110: Illegal option in POLEZERO file: > > I don't understand the error. Can you help me with this problem? > > Thanks a lot > Best Regards > Ana Domingues > > > From shutian33 at yahoo.ca Mon Mar 21 06:47:07 2011 From: shutian33 at yahoo.ca (Shutian Ma) Date: Mon, 21 Mar 2011 06:47:07 -0700 (PDT) Subject: [SAC-HELP] how to use sac function synchronize effectively In-Reply-To: Message-ID: <38422.93219.qm@web88308.mail.re4.yahoo.com> Dear colleagues, Recently we transferred some waveform records from IRIS. These records generated by the same earthquake do not have the same start time. As we need all the records generated by the same earthquake have the same start time to make measurement we tried to use sac2000 function synchronize. After we used the function and used lh we found all the ktime? are same. When we display those waveform records processed by the function synchronize, we found the original start times are still kept. Could you tell me how to use the synchronize function effectively? Do you have another way to make all the records generated by the same earthquake have the same start time? Thanks in advance, Shutian From Onur.Tan at mam.gov.tr Mon Mar 21 08:04:51 2011 From: Onur.Tan at mam.gov.tr (Onur Tan) Date: Mon, 21 Mar 2011 17:04:51 +0200 Subject: [SAC-HELP] how to use sac function synchronize effectively In-Reply-To: <38422.93219.qm@web88308.mail.re4.yahoo.com> Message-ID: Hi, You can change the time info in header with chnhdr. the SAC can change the relative time (in seconds) of the data. see the description part of the manual http://www.iris.edu/software/sac/commands/chnhdr.html Onur Dr. Onur TAN ---------------------------------------------- 40.7866N 29.4500E --------- T?B?TAK Marmara Ara?t?rma Merkezi, Yer ve Deniz Bilimleri Enstit?s? TUBITAK Marmara Research Center, Earth and Marine Sciences Institute Gebze - Kocaeli - TURKEY On 21.03.2011 15:47, "Shutian Ma" wrote: Dear colleagues, Recently we transferred some waveform records from IRIS. These records generated by the same earthquake do not have the same start time. As we need all the records generated by the same earthquake have the same start time to make measurement we tried to use sac2000 function synchronize. After we used the function and used lh we found all the ktime? are same. When we display those waveform records processed by the function synchronize, we found the original start times are still kept. Could you tell me how to use the synchronize function effectively? Do you have another way to make all the records generated by the same earthquake have the same start time? Thanks in advance, Shutian _______________________________________________ sac-help mailing list sac-help at iris.washington.edu http://www.iris.washington.edu/mailman/listinfo/sac-help From jattanayake at yahoo.com Mon Mar 21 13:46:16 2011 From: jattanayake at yahoo.com (Januka Attanayake) Date: Mon, 21 Mar 2011 13:46:16 -0700 (PDT) Subject: [SAC-HELP] how to use sac function synchronize effectively In-Reply-To: <38422.93219.qm@web88308.mail.re4.yahoo.com> Message-ID: <469276.71766.qm@web162010.mail.bf1.yahoo.com> If you want to recover the? zero padded "whole" trace you could use the OMARKER header. It's the length of time missing from the sac trace that you download from IRIS. For example, you might be able to use something like the following macro -- adds zeros from the origin time to the starting point of your trace using cuterr fillz. I am guessing this will automatically adjust your start time but please double check and modify as needed. DO FILE WILD *.BHZ.R.SAC* ? READ $FILE ? SETBB OMKR &1,OMARKER ? GETBB OMKR ? xlim T0 -10 10 ? p ? CUT ON ? CUTERR FILLZ ? CUT b %OMKR e ? READ $FILE ? WRITE OVER ENDDO CUT OFF _______________Serenity isn't freedom from the storm, but peace within the storm Januka Attanayake? Global Seismology & Economics The University of Connecticut Beach Hall - U2045 354, Mansfield Rd; Storrs, CT 06269 Tel :? 860 486 0475 (Office) ????????? 860 486 3914 (Lab - P405) URL:?http://sites.google.com/site/janukaattanayake/ --- On Mon, 3/21/11, Shutian Ma wrote: From: Shutian Ma Subject: [SAC-HELP] how to use sac function synchronize effectively To: sac-help at iris.washington.edu Date: Monday, March 21, 2011, 9:47 AM Dear colleagues, Recently we transferred some waveform records from IRIS. These records generated by the same earthquake do not have the same start time. As we need all the records generated by the same earthquake have the same start time to make measurement we tried to use sac2000 function synchronize. After we used the function and used lh we found all the ktime? are same. When we display those waveform records processed by the function synchronize, we found the original start times are still kept. Could you tell me how to use the synchronize function effectively? Do you have another way to make all the records generated by the same earthquake have the same start time? Thanks in advance, Shutian??? _______________________________________________ sac-help mailing list sac-help at iris.washington.edu http://www.iris.washington.edu/mailman/listinfo/sac-help -------------- next part -------------- An HTML attachment was scrubbed... URL: From mack.jenkins at eas.gatech.edu Wed Mar 23 08:55:19 2011 From: mack.jenkins at eas.gatech.edu (Jenkins, Mack) Date: Wed, 23 Mar 2011 11:55:19 -0400 (EDT) Subject: [SAC-HELP] GLicC Errors In-Reply-To: <2053446927.77804.1300895600028.JavaMail.root@mail4.gatech.edu> Message-ID: <1996702330.77872.1300895719438.JavaMail.root@mail4.gatech.edu> Hey guys, I've got some researchers in my department who use SAC, and it is throwing a lot of errors. Are there cetain flavors of linux that SAC is not certified to work for, and others that it will work on, but not certified? I'll include some of the errors below. SAC> q *** glibc detected *** sac: free(): invalid next size (normal): 0x0000000001dc0a90 *** Segmentation fault (core dumped) *** glibc detected *** sac: free(): invalid next size (normal): 0x00000000009d7f60 *** ======= Backtrace: ========= /lib64/libc.so.6[0x7f3eb7c1f0c8] /lib64/libc.so.6(cfree+0x76)[0x7f3eb7c20c26] sac[0x5b27dd] sac[0x5b2cd9] sac[0x5a33c0] sac[0x40dacf] sac[0x43cf72] sac[0x4128c3] sac[0x40b1b0] sac[0x40555c] /lib64/libc.so.6(__libc_start_main+0xe6)[0x7f3eb7bc9586] sac[0x404efa] ======= Memory map: ======== 00400000-00604000 r-xp 00000000 00:13 5685732 /usr/local/geophysics/sac/sac-101.3b/bin/sac 00703000-0072a000 rw-p 00203000 00:13 5685732 /usr/local/geophysics/sac/sac-101.3b/bin/sac 0072a000-00a01000 rw-p 0072a000 00:00 0 [heap] 7f3e74000000-7f3e74021000 rw-p 7f3e74000000 00:00 0 7f3e74021000-7f3e78000000 ---p 7f3e74021000 00:00 0 7f3e78e89000-7f3e78e9f000 r-xp 00000000 08:03 4096111 /lib64/libgcc_s.so.1 7f3e78e9f000-7f3e7909f000 ---p 00016000 08:03 4096111 /lib64/libgcc_s.so.1 7f3e7909f000-7f3e790a0000 r--p 00016000 08:03 4096111 /lib64/libgcc_s.so.1 7f3e790a0000-7f3e790a1000 rw-p 00017000 08:03 4096111 /lib64/libgcc_s.so.1 7f3e790a1000-7f3e790a6000 r-xp 00000000 08:03 444104 /usr/lib64/libXfixes.so.3.1.0 7f3e790a6000-7f3e792a5000 ---p 00005000 08:03 444104 /usr/lib64/libXfixes.so.3.1.0 7f3e792a5000-7f3e792a6000 r--p 00004000 08:03 444104 /usr/lib64/libXfixes.so.3.1.0 7f3e792a6000-7f3e792a7000 rw-p 00005000 08:03 444104 /usr/lib64/libXfixes.so.3.1.0 7f3e792a7000-7f3e792b0000 r-xp 00000000 08:03 444103 /usr/lib64/libXrender.so.1.3.0 7f3e792b0000-7f3e794af000 ---p 00009000 08:03 444103 /usr/lib64/libXrender.so.1.3.0 7f3e794af000-7f3e794b0000 r--p 00008000 08:03 444103 /usr/lib64/libXrender.so.1.3.0 7f3e794b0000-7f3e794b1000 rw-p 00009000 08:03 444103 /usr/lib64/libXrender.so.1.3.0 7f3e794b1000-7f3e794bb000 r-xp 00000000 08:03 444122 /usr/lib64/libXcursor.so.1.0.2 7f3e794bb000-7f3e796ba000 ---p 0000a000 08:03 444122 /usr/lib64/libXcursor.so.1.0.2 7f3e796ba000-7f3e796bb000 r--p 00009000 08:03 444122 /usr/lib64/libXcursor.so.1.0.2 7f3e796bb000-7f3e796bc000 rw-p 0000a000 08:03 444122 /usr/lib64/libXcursor.so.1.0.2 7f3e796bc000-7f3eb7384000 rw-p 7f3e796bc000 00:00 0 7f3eb7384000-7f3eb7386000 r-xp 00000000 08:03 443520 /usr/lib64/libXau.so.6.0.0 7f3eb7386000-7f3eb7586000 ---p 00002000 08:03 443520 /usr/lib64/libXau.so.6.0.0 7f3eb7586000-7f3eb7587000 r--p 00002000 08:03 443520 /usr/lib64/libXau.so.6.0.0 7f3eb7587000-7f3eb7588000 rw-p 00003000 08:03 443520 /usr/lib64/libXau.so.6.0.0 7f3eb7588000-7f3eb75a3000 r-xp 00000000 08:03 444294 /usr/lib64/libxcb.so.1.0.0 7f3eb75a3000-7f3eb77a2000 ---p 0001b000 08:03 444294 /usr/lib64/libxcb.so.1.0.0 7f3eb77a2000-7f3eb77a3000 r--p 0001a000 08:03 444294 /usr/lib64/libxcb.so.1.0.0 7f3eb77a3000-7f3eb77a4000 rw-p 0001b000 08:03 444294 /usr/lib64/libxcb.so.1.0.0 7f3eb77a4000-7f3eb77a5000 r-xp 00000000 08:03 444288 /usr/lib64/libxcb-xlib.so.0.0.0 7f3eb77a5000-7f3eb79a4000 ---p 00001000 08:03 444288 /usr/lib64/libxcb-xlib.so.0.0.0 7f3eb79a4000-7f3eb79a5000 r--p 00000000 08:03 444288 /usr/lib64/libxcb-xlib.so.0.0.0 7f3eb79a5000-7f3eb79a6000 rw-p 00001000 08:03 444288 /usr/lib64/libxcb-xlib.so.0.0.0 7f3eb79a6000-7f3eb79aa000 r-xp 00000000 08:03 4096153 /lib64/libuuid.so.1.2 7f3eb79aa000-7f3eb7ba9000 ---p 00004000 08:03 4096153 /lib64/libuuid.so.1.2 7f3eb7ba9000-7f3eb7baa000 r--p 00003000 08:03 4096153 /lib64/libuuid.so.1.2 7f3eb7baa000-7f3eb7bab000 rw-p 00004000 08:03 4096153 /lib64/libuuid.so.1.2 7f3eb7bab000-7f3eb7cfa000 r-xAborted -- Mack J. Jenkins, II 404-385-1591 mack.jenkins at eas.gatech.edu System Support Engineer II Earth & Atmospheric Sciences From savage at uri.edu Wed Mar 23 09:48:17 2011 From: savage at uri.edu (Brian Savage) Date: Wed, 23 Mar 2011 12:48:17 -0400 Subject: [SAC-HELP] GLicC Errors In-Reply-To: <1996702330.77872.1300895719438.JavaMail.root@mail4.gatech.edu> References: <1996702330.77872.1300895719438.JavaMail.root@mail4.gatech.edu> Message-ID: <2A17FB9D-7DAF-4598-AA5E-5A7BE7C9D086@uri.edu> Mack, Please see http://www.iris.washington.edu/pipermail/sac-help/2009-August/000593.html to avoid these errors. To actually completely resolve this issue, I am going to need a simple set of commands issued in SAC that recreates this error and the version of SAC you are running and the OS type. Thanks, Brian On Mar 23, 2011, at 11:55 AM , Jenkins, Mack wrote: > Hey guys, > > I've got some researchers in my department who use SAC, and it is > throwing a lot of errors. Are there cetain flavors of linux that > SAC is not certified to work for, and others that it will work on, > but not certified? I'll include some of the errors below. > > SAC> q > > *** glibc detected *** sac: free(): invalid next size (normal): > 0x0000000001dc0a90 *** > Segmentation fault (core dumped) > > > *** glibc detected *** sac: free(): invalid next size (normal): > 0x00000000009d7f60 *** > ======= Backtrace: ========= > /lib64/libc.so.6[0x7f3eb7c1f0c8] > /lib64/libc.so.6(cfree+0x76)[0x7f3eb7c20c26] > sac[0x5b27dd] > sac[0x5b2cd9] > sac[0x5a33c0] > sac[0x40dacf] > sac[0x43cf72] > sac[0x4128c3] > sac[0x40b1b0] > sac[0x40555c] > /lib64/libc.so.6(__libc_start_main+0xe6)[0x7f3eb7bc9586] > sac[0x404efa] > ======= Memory map: ======== > 00400000-00604000 r-xp 00000000 00:13 > 5685732 /usr/local/geophysics/sac/ > sac-101.3b/bin/sac > 00703000-0072a000 rw-p 00203000 00:13 > 5685732 /usr/local/geophysics/sac/ > sac-101.3b/bin/sac > 0072a000-00a01000 rw-p 0072a000 00:00 > 0 [heap] > 7f3e74000000-7f3e74021000 rw-p 7f3e74000000 00:00 0 > 7f3e74021000-7f3e78000000 ---p 7f3e74021000 00:00 0 > 7f3e78e89000-7f3e78e9f000 r-xp 00000000 08:03 > 4096111 /lib64/libgcc_s.so.1 > 7f3e78e9f000-7f3e7909f000 ---p 00016000 08:03 > 4096111 /lib64/libgcc_s.so.1 > 7f3e7909f000-7f3e790a0000 r--p 00016000 08:03 > 4096111 /lib64/libgcc_s.so.1 > 7f3e790a0000-7f3e790a1000 rw-p 00017000 08:03 > 4096111 /lib64/libgcc_s.so.1 > 7f3e790a1000-7f3e790a6000 r-xp 00000000 08:03 > 444104 /usr/lib64/libXfixes.so.3.1.0 > 7f3e790a6000-7f3e792a5000 ---p 00005000 08:03 > 444104 /usr/lib64/libXfixes.so.3.1.0 > 7f3e792a5000-7f3e792a6000 r--p 00004000 08:03 > 444104 /usr/lib64/libXfixes.so.3.1.0 > 7f3e792a6000-7f3e792a7000 rw-p 00005000 08:03 > 444104 /usr/lib64/libXfixes.so.3.1.0 > 7f3e792a7000-7f3e792b0000 r-xp 00000000 08:03 > 444103 /usr/lib64/libXrender.so.1.3.0 > 7f3e792b0000-7f3e794af000 ---p 00009000 08:03 > 444103 /usr/lib64/libXrender.so.1.3.0 > 7f3e794af000-7f3e794b0000 r--p 00008000 08:03 > 444103 /usr/lib64/libXrender.so.1.3.0 > 7f3e794b0000-7f3e794b1000 rw-p 00009000 08:03 > 444103 /usr/lib64/libXrender.so.1.3.0 > 7f3e794b1000-7f3e794bb000 r-xp 00000000 08:03 > 444122 /usr/lib64/libXcursor.so.1.0.2 > 7f3e794bb000-7f3e796ba000 ---p 0000a000 08:03 > 444122 /usr/lib64/libXcursor.so.1.0.2 > 7f3e796ba000-7f3e796bb000 r--p 00009000 08:03 > 444122 /usr/lib64/libXcursor.so.1.0.2 > 7f3e796bb000-7f3e796bc000 rw-p 0000a000 08:03 > 444122 /usr/lib64/libXcursor.so.1.0.2 > 7f3e796bc000-7f3eb7384000 rw-p 7f3e796bc000 00:00 0 > 7f3eb7384000-7f3eb7386000 r-xp 00000000 08:03 > 443520 /usr/lib64/libXau.so.6.0.0 > 7f3eb7386000-7f3eb7586000 ---p 00002000 08:03 > 443520 /usr/lib64/libXau.so.6.0.0 > 7f3eb7586000-7f3eb7587000 r--p 00002000 08:03 > 443520 /usr/lib64/libXau.so.6.0.0 > 7f3eb7587000-7f3eb7588000 rw-p 00003000 08:03 > 443520 /usr/lib64/libXau.so.6.0.0 > 7f3eb7588000-7f3eb75a3000 r-xp 00000000 08:03 > 444294 /usr/lib64/libxcb.so.1.0.0 > 7f3eb75a3000-7f3eb77a2000 ---p 0001b000 08:03 > 444294 /usr/lib64/libxcb.so.1.0.0 > 7f3eb77a2000-7f3eb77a3000 r--p 0001a000 08:03 > 444294 /usr/lib64/libxcb.so.1.0.0 > 7f3eb77a3000-7f3eb77a4000 rw-p 0001b000 08:03 > 444294 /usr/lib64/libxcb.so.1.0.0 > 7f3eb77a4000-7f3eb77a5000 r-xp 00000000 08:03 > 444288 /usr/lib64/libxcb-xlib.so.0.0.0 > 7f3eb77a5000-7f3eb79a4000 ---p 00001000 08:03 > 444288 /usr/lib64/libxcb-xlib.so.0.0.0 > 7f3eb79a4000-7f3eb79a5000 r--p 00000000 08:03 > 444288 /usr/lib64/libxcb-xlib.so.0.0.0 > 7f3eb79a5000-7f3eb79a6000 rw-p 00001000 08:03 > 444288 /usr/lib64/libxcb-xlib.so.0.0.0 > 7f3eb79a6000-7f3eb79aa000 r-xp 00000000 08:03 > 4096153 /lib64/libuuid.so.1.2 > 7f3eb79aa000-7f3eb7ba9000 ---p 00004000 08:03 > 4096153 /lib64/libuuid.so.1.2 > 7f3eb7ba9000-7f3eb7baa000 r--p 00003000 08:03 > 4096153 /lib64/libuuid.so.1.2 > 7f3eb7baa000-7f3eb7bab000 rw-p 00004000 08:03 > 4096153 /lib64/libuuid.so.1.2 > 7f3eb7bab000-7f3eb7cfa000 r-xAborted > > -- > Mack J. Jenkins, II > 404-385-1591 > mack.jenkins at eas.gatech.edu > System Support Engineer II > Earth & Atmospheric Sciences > > _______________________________________________ > sac-help mailing list > sac-help at iris.washington.edu > http://www.iris.washington.edu/mailman/listinfo/sac-help From alleymi at naver.com Mon Mar 28 19:17:52 2011 From: alleymi at naver.com (=?ks_c_5601-1987?B?sei5zMGk?=) Date: Tue, 29 Mar 2011 11:17:52 +0900 Subject: [SAC-HELP] Help me, please Message-ID: Dear, Would you send me the installation manual of SAC? I forgot the manual. Please help me. -------------- next part -------------- An HTML attachment was scrubbed... URL: From crobert.lock at gmail.com Wed Mar 30 08:39:26 2011 From: crobert.lock at gmail.com (Robert Lock) Date: Wed, 30 Mar 2011 11:39:26 -0400 Subject: [SAC-HELP] SAC time shift help Message-ID: Hello, I am trying to rotate two different components and then shift one of the components by 1 sec, I am correcting for anisotropy. I have looked through the sac manual and can not find a command to accomplish this time shift. Is it the ADD command. My understanding is that ADD would increase amplitude, not shift time. What is the command to shift a component by 1 sec ( ie move each data point forward/backward by 1 sec. )? Any help would be greatly appreciated. Thank you, C. Robert Lock -------------- next part -------------- An HTML attachment was scrubbed... URL: From jattanayake at yahoo.com Wed Mar 30 08:57:58 2011 From: jattanayake at yahoo.com (Januka Attanayake) Date: Wed, 30 Mar 2011 08:57:58 -0700 (PDT) Subject: [SAC-HELP] SAC time shift help In-Reply-To: Message-ID: <289406.41723.qm@web162020.mail.bf1.yahoo.com> to do a backward shift you might be able to use cuterr fillz, add zeros (1sec long) to the front end of the time series _______________Serenity isn't freedom from the storm, but peace within the storm Januka Attanayake? Global Seismology & Economics The University of Connecticut Beach Hall - U2045 354, Mansfield Rd; Storrs, CT 06269 Tel :? 860 486 0475 (Office) ????????? 860 486 3914 (Lab - P405) URL:?http://sites.google.com/site/janukaattanayake/ --- On Wed, 3/30/11, Robert Lock wrote: From: Robert Lock Subject: [SAC-HELP] SAC time shift help To: sac-help at iris.washington.edu Date: Wednesday, March 30, 2011, 11:39 AM Hello, I am trying to rotate two different components and then shift one of the components by 1 sec, I am correcting for anisotropy. I have looked through the sac manual and can not find a command to?accomplish this time shift. Is it the ADD command. My understanding is that ADD would increase amplitude, not shift time. What is the command to shift a component by 1 sec ( ie move each data point?forward/backward by 1 sec. )? Any help would be greatly appreciated. Thank you, C. Robert Lock -----Inline Attachment Follows----- _______________________________________________ sac-help mailing list sac-help at iris.washington.edu http://www.iris.washington.edu/mailman/listinfo/sac-help -------------- next part -------------- An HTML attachment was scrubbed... URL: