Over the years when working with different folks from the USGS in every case
they have asked for a raw dataset with no edits and no filters. They also
wanted non event data on both sides of the event. For simple local events
that lasted just a few seconds we have supplied them with apx three min
worth of raw data. 
Regards, Steve Hammond PSN San Jose, Aptos California

-----Original Message-----
From: psn-l-request@.............. [mailto:psn-l-request@............... On
Behalf Of Larry Conklin
Sent: Wednesday, June 03, 2009 5:17 PM
To: psn-l@..............
Subject: Re: Event file editor

Well, the program saves the original file as a .BAK and creates an 
edited version with the original file name.  So you get to eat your cake 
and archive it too, if that is what you want.  I make no allusions that 
my data has any significant scientific value.

Larry


Geoffrey wrote:
> I would think if you are serious as scientist
> you keep the raw file
> as it originally was even with the flaws.
> Any modification to the data renders it
> useless of most scientific value by
> creating a subjective work of art.
> 
> But the tool might be useful such as before doing an fft
> by getting rid of cal marks or such.
> 
> 
> ----- Original Message ----- From: "Larry Conklin" 
> To: "PSN List" 
> Sent: Wednesday, June 03, 2009 7:40 AM
> Subject: Event file editor
> 
> 
>> A couple of weeks ago, someone asked whether there was a convenient 
>> way to edit spurious spikes out of an event data file.  Since I have 
>> the same problem, I decided to write a simple little program for 
>> editing PSNTYPE4 event data files.  The program prompts for the start 
>> and end times of the segment you want to edit and replaces the 
>> offending data samples with zeros.  Not very fancy, but it works.  If 
>> anyone would like a copy of the tool and/or the source code, I would 
>> be happy to send it to you.
>>
>> Larry Conklin
>> Liverpool, NY
>> lconklin@............
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