HDTenEightyP/NetNews huggingface dataset:
From: croley@r2d2.mcc.com (David Croley)
Subject: Sample I/O for an RLS filter
Reply-To: croley@r2d2.mcc.com (David Croley)
Organization: MCC CAD Program
Date: Thu, 5 Nov 1992 15:13:52 GMT

I am currently working on methods of parallelizing recursive algorithms.  I am
implementing a parallel version of the standard Recursive Least Squares
algorithm to demonstrate the principles.  My problem is that I am unsure if
the serial version I have is correct.  If anyone has any pointer as to where
I can find source code for a serial RLS filter, I would appreciate.  Also,
I could use known correct sample input and output to test my code.  I'll
try to post an update if I get it working.

-----------------
David T. Croley | "To iterate is human, to recurse divine." - L. Peter Deutsch
croley@mcc.com  | Univ. of Texas at Austin - MCC - Experimental Systems Lab
-----------------
Xref: sparky comp.dsp:2527 sci.electronics:18365
From: dale@ldgo.columbia.edu (dale)
Newsgroups: comp.dsp,sci.electronics
Subject: Douglas-Peuker Filter anyone?
Keywords: filter douglas-peuker
Date: 5 Nov 92 14:53:03 GMT
Article-I.D.: lamont.1992Nov5.145303.7681
Organization: Lamont-Doherty Geological Observatory


	I'm looking for a reference to a "Douglas-Peuker" filter. A
software implementation would also be nice, but for now, I'd be happy
with a reference to a paper I could read. If your fingers are itchy,
I'd be happy with a soft-copy.
	
	From what I can tell (from the context in which its
mentioned), it appears to be a filter for decimating datasets by
estimating the local slope of vector (array) and only saving points
when the slope changes significantly.

	Since I don't have much of a clue about this thing, I'd
suggest replying by e-mail unless you think its of general interest.

Thanks in advance,
-Dale
-- 
Dale Chayes
Senior Staff Associate
Lamont-Doherty Geological Observatory of Columbia University
Route 9W, Palisades, N.Y.  10964	
Newsgroups: comp.dsp
From: az@i5120h.nrl.navy.mil (Andy Zwirko)
Subject: Text book request
Summary: Need DSP text
Keywords: textbooks DSP FFT transforms 
Organization: NRL
Date: Tue, 10 Nov 1992 19:27:11 GMT

Hi fellow netters...

  I have a question from a fellow, who would much appreciate if you could
reply to him directly, regarding the following:


>>From: RMADSEN@velara.sim.es.com (Ron)

>> The main thing I am looking for right now is self-instruction materials or 
>> REALLY GOOD text books which could be used for self-instruction on 
>> Calculus, numerical methods, and digital signal processing. I am finding 
>> that I need to understand s-plane concepts, Laplace transforms, Fourier 
>> Transforms, etc. My current level of comprehension is close to zero. 


Note, he doesn't have access to comp.dsp, so direct replies to him are 
requested.   Thanks for your time.

andy

  Zwirko@wave.nrl.navy.mil

-- 

     Zwirko@Wave.NRL.Navy.Mil

Newsgroups: comp.dsp
From: sriram@sun.ipl.rpi.edu (R. Sriram)
Subject: Reflection Coeffts
Date: Wed, 11 Nov 1992 03:19:15 GMT

Hello,
I've a problem on autoregressive process. 

A stationary process may be modeled as an autoregressive process (e.g
speech). The reconstruction process involves driving the inverse filter
formed by the polynomial 1 - sum[a_i z^(-i)], summation over the order
of the polynomial. Now usually quantization of the filter coeffts is
not done bec' of stability of the IIR filter. So one quantizes the
reflection coeffts. 
My question is 
1) How can one represent the mean square error of the quantization of the
   reflection coeffts in terms of the quantization of the filter coeffts ?
2) If (1) is possible, how does it translate into a mean square error of
   the reconstructed process ?

My problem is actually a 2-D version where the polynomial in 2-D is not
even separable. But atleast if I can get a handle of the 1-D case, maybe
I can make some assumptions.

My final goal is to get a rate-distortion curve for the quantization of
the reflection coeffts vs the mean square error of the reconstructed process.

Are there any references on this ? I feel this problem has been tackled in
speech coding based on LPC technique. But don't have any references on that
either.

Any help is greatly appreciated since I've to complete my thesis by this
year!!!

Thanks to all in advance.

I can post a summary of responses, if there are enough replies.
Pl. reply to sriram@ipl.rpi.edu or to the net. Either way is fine.

Sriram
From: janssen@parc.xerox.com (Bill Janssen)
Newsgroups: comp.soft-sys.andrew
Subject: Re: Printers
Date: 10 Nov 92 23:22:27 GMT
Distribution: world
Organization: The Internet

Excerpts from ext.andrew: 10-Nov-92 Re: Printers Todd
Inglett@rchland.ibm (4084+0)

>> Aren't these dependencies necessary to support ATK's "preview"?

> No, in fact I would prefer a postscript previewing program that uses
> ghostscript even for the current troff setup.  This would allow drawings
> and rasters to be seen in the previewed document.

Yes, in fact I use ghostview as my preview tool for printed ATK documents.

Bill
From: janssen@parc.xerox.com (Bill Janssen)
Newsgroups: comp.soft-sys.andrew
Subject: Re: Postscript Printing Comments? (was) Re: Printers
Date: 10 Nov 92 23:16:54 GMT
Distribution: world
Organization: The Internet

I think Bob's comments here are right on the mark.

Bill
From: jose.perdigao@cen.jrc.it (Jose Perdigao)
Newsgroups: comp.soft-sys.andrew
Subject: VUI on IBM 3270 terminal  ?
Date: 9 Nov 92 11:30:20 GMT
Distribution: world
Organization: The Internet


Hi,

Is it possible to display VUI on an IBM 3270 terminal by a telnet
conection to a unix machine ?

If so what terminal type do I need to define in the environment variable TERM ?

Thanks.
From: rr2b+@ANDREW.CMU.EDU (Robert Andrew Ryan)
Newsgroups: comp.soft-sys.andrew
Subject: Re: Postscript Printing Comments? (was) Re: Printers
Date: 11 Nov 92 00:23:26 GMT
Distribution: world
Organization: The Internet

Excerpts from mail: 10-Nov-92 Re: Postscript Printing Com.. Bill
Janssen@parc.xerox. (1032)

> I think this is a real red herring and a good way to sink your
consortium by adding useless work.

Do you consider ATK to Postscript printing to be in the red herring
category as well?

-Rob
From: rr2b+@ANDREW.CMU.EDU (Robert Andrew Ryan)
Newsgroups: comp.soft-sys.andrew
Subject: Re: compchar question
Date: 10 Nov 92 16:57:44 GMT
Distribution: world
Organization: The Internet

Excerpts from internet.other.info-andrew: 10-Nov-92 compchar question
Bob_Dew@alw.nih.gov (158*)

> Is there any way to include the registered trademark symbol (capital R
inside of a circle) in an ATK document?

Yes, the rg composition should be what you want.  (Assuming the font
being used has ISO-latin-1 characters.)

Excerpts from internet.other.info-andrew: 10-Nov-92 compchar question
Bob_Dew@alw.nih.gov (158*)

> How about a superscripted TM?

I don't see it anywhere, you'll probably have to make do with
superscripting a small tm like:ATM  (superscript smaller smaller)

-Rob
Newsgroups: comp.soft-sys.andrew
Subject: Andrew under AIX (3.2)?
From: Thomas J Cozzolino <RBNTJC@rohvm1.rohmhaas.com>
Date: Thu, 12 Nov 1992 11:02:30 EST
Organization: Rohm and Haas Company

The title mostly says it.  Is there a ready-to-run version of Andrew publicly
available for RS/6000 under 3.2.X?

Can I grab it via FTP?
Please respond directly if possible; sorry if this is a FAQ.

+============================================+
|   Thomas J. Cozzolino - Rohm and Haas Co.   =
|   InterNet:    tcozz@rohmhaas.com            =
|                                               =
|     Internet Access for Everyone..             =
|         Isn't it time?                          =
|                                                  =
|   - Opinions expressed are my own, not            =
|     necessarily those of Rohm and Haas Company     =
+=====================================================+
From: Bob_Dew@ALW.NIH.GOV
Newsgroups: comp.soft-sys.andrew
Subject: Re: Postscript Printing Comments? (was) Re: Printers
Date: 10 Nov 92 05:51:57 GMT
Distribution: world
Organization: The Internet

> Our intent is to replace preview with code which hopefully will work in
> the same process as the document being edited.  Ideally I would like to
> see the Postscript printing layout technology leveraged into a true
> WYSIWYG editor. 

A drawback with WYSIWYG editors as you describe is that they require a
binary format in which to store working drafts and editable document
copies.  One can rest assured that there will never exist a
WYSIWYG-to-ATK interpreter.

I think one of the celebrated features that ATK offers over many (if not
all) commercially available counterparts is that its intermediate data
format is non-proprietary and ASCII readable. This open systems
approach, to coin increasingly popular buzz term, makes text formatting
packages like ATK far more attractive, in my opinion, than similar
look-alikes (like Rapport and Asterix, for examples) which have limited
usefulness outside of their own proprietary formatting protocols.

If I really wanted to use a WYSIWYG editor, I'd probably opt for
something with a full range of formatting and typesetting capabilities,
which in all likelihood would lie outside of what ATK could reasonably
offer, and beyond what ATK has thus far been exemplary in providing.

ATK's strengths lie in its simplicity, its ease of use, and in its
relative ease of portability among a variety of communications systems,
including on-line and printable help facilities, mail and bulletin board
services, text processing utilities, etc. 

I think it would behoove project goals to investigate new text
formatting ideas from the perspective of keeping data formats flexible,
and as standard and as portable as possible.

-Bob
From: rr2b+@ANDREW.CMU.EDU (Robert Andrew Ryan)
Newsgroups: comp.soft-sys.andrew
Subject: Re: Printers
Date: 10 Nov 92 19:22:03 GMT
Distribution: world
Organization: The Internet

Excerpts from internet.other.info-andrew: 10-Nov-92 Re: Printers
Garrett.Wollman@UVM.EDU (1049)

> <<On Tue, 10 Nov 1992 07:44:55 -0600 (CST), Todd Inglett
> <tinglett+@rchland.ibm.com> said:

> > I think a class similar to graphic (subclass of graphic) to render
> > postscript would result in the biggest short term win. 

> This should actually be a fairly quick hack, if you are willing to
depend on ghostscript.

I think you've slightly misunderstood the proposal (though what you say
is correct given the misunderstanding.)

I believe the concept Todd Inglett is speaking of is that there be
another subclass of graphic (and probably view) which would allow any
existing ATK view to be printed simply by inserting it under a special
view, and requesting a full update.  The result of which would be a
batch of postscript for drawing the view.  This will probably be part of
the system if we do go through with direct postscript printing.

Excerpts from internet.other.info-andrew: 10-Nov-92 Re: Printers
Garrett.Wollman@UVM.EDU (1049)

> Just create a pixmap or window on the X server, and set the enviornment
> variable GHOSTVIEW to be either the window ID, or the window ID and the
> pixmap ID.  Then fire up ghostscript with the PostScript code as
> standard input, and away we go.

I actually had the quick hack done once, unfortunately I was not
satisfied with the requirement that I have one gs process per ps inset
(also the ability to tell gs what area of the window to use would be a
big help).  I've been meaning to send the Ghostscript folks my wish list
for awhile now...  (Another approach would be to have gs use it's
backing pixmap, and never map it's window..., then just xcopyare from
it's pixmap onto the view.)  Unfortunately all of this violates the
concept of window system independence.  (It could be preserved if we
used the pbm device, but that would mean putting the images out over the
wire to the X or WM server.)

-Rob
From: bernerus@CS.CHALMERS.SE (Christer Bernerus)
Newsgroups: comp.soft-sys.andrew
Subject: ezmail
Date: 12 Nov 92 09:10:07 GMT
Distribution: world
Organization: The Internet

<nl>
In order to promote the usage of messages at Chalmers, I'd need an AMS based U=
A that runs on a dumb terminal. People don't have workstations at home, but th=
ey want to read their mail from home too, and without an agent like this, they=
 refuse to use messages.<nl>
<nl>
In the ATK distribution, the cui and vui UA's are available. None of them have=
 a user interface that I'd like to present to my users.<nl>
<nl>
Now, I've heard that there is a program called EzMail around that might do wha=
t I want, but I'd like to know more about availability and functionality. Of s=
pecial interest is the capability of handling  MIME with at least Content-Tran=
sfer encoding and the ISO-8859-1 charset..<nl>
<nl>
Can anyone give me some more info ?<nl>
<nl>
	Chris.<nl>
<fixed>--------------------------------------------------------------------<nl=
>
Christer Bern=E9rus, SM6FBQ		!E-mail: bernerus@cs.chalmers.se<nl>
Chalmers University of Technology	! Phone: +46 31 7721036<nl>
Department of Computer Science<nl>
S-412 96 Gothenburg, SWEDEN	<nl>
<smaller><bold><nl>
</bold></smaller></fixed>
From: tinglett+@rchland.ibm.com (Todd Inglett)
Newsgroups: comp.soft-sys.andrew
Subject: Re: Making a hyperlink running another program ?
Date: 12 Nov 92 14:28:40 GMT
Reply-To: "Todd Inglett" <tinglett@vnet.ibm.com>
Distribution: world
Organization: The Internet

Excerpts from ext.misc.info-andrew: 11-Nov-92 Making ahyperlink running
.. Dag Nygren@bloom-beacon. (533)

> is there a way of using pushbuttons to run other programs from a ezdocument?

I just finished a small project which does just this, however it is a
bit moredifficult than to simply create a button that runs a command. 
Obviously thecommand could do something malicious.  Just look at the
hoops that ness goesthrough to protect users!

My idea is to create a button (I call it runbutton for lack of abetter
name) that could run an arbitrary command, but the ordinary PATH isnot
used to execute the command.  Instead a preference is used tosearch a
limited set of directories.  Presumably administrators would policethe
commands in those directories.  Also, the command name cannot
containslashes (no absolute or ../../xxx relative commands).  It also
does not use ashell to execute the command so shell metacharacters like
backquote are notinterpreted.

I also plan to look for command's whose names are the form xxx.n, which
I willassume is a ness script.  In this case, I will compile and execute
the nesscode automatically when the button is pushed.  This allows the
ness to takecontrol of the window, asking questions, etc.

Anybody see any security holes in this plan?  I haven't looked at the
Nessidea too closely yet, but it looks trivial.  I don't know about
securitythere, though.

-todd inglett
From: simon@lia.di.epfl.ch (Simon Leinen)
Newsgroups: comp.soft-sys.andrew
Subject: Re: Building Andrew on a Silicon Graphics
Date: 9 Nov 92 19:13:05 GMT
Organization: DI-LIA -- Ecole Polytechnique Federale de Lausanne
In-reply-to: mikes@bioch.ox.ac.uk's message of 9 Nov 92 13:17:49 GMT
X-Md4-Signature: 3df70983c742c38eba7543c97e7bdd1a

In article <1992Nov9.131749.961@newton.bioch.ox.ac.uk>
mikes@bioch.ox.ac.uk (Mike Smith) writes:

	   cc -G 0 -cckr -c  -O -I.  -I/usr/andrew/include/atk -I/usr/andrew/include -I/usr/include -DSYSV -D_BSD_SIGNALS  doload.c
   cpp: error /usr/include/syms.h:113: Can't find include file cmplrs/stsupport.h

This means that you should install the IRIX subsystem
"dev.complrs_hdr.internal" (Base Compiler Internal Headers).  I think
you also need this if you want to compile GNU CC.

Hope this helps,
-- 
Simon.
From: tinglett+@rchland.ibm.com (Todd Inglett)
Newsgroups: comp.soft-sys.andrew
Subject: Re: compchar question
Date: 10 Nov 92 18:52:26 GMT
Reply-To: "Todd Inglett" <tinglett@vnet.ibm.com>
Distribution: world
Organization: The Internet

Excerpts from ext.misc.info-andrew: 10-Nov-92 compcharquestion
Bob_Dew@alw.nih.gov (158*)

> Is there any way to include the registered trademark symbol(capital R
> inside of a circle) in an ATK document?  How about a superscriptedTM?

I use . for registered (^X x r g) and just a superscripted tm for thetm.
 Do they show up for you?  You might also want to testprinting them.

-todd inglett
From: gk5g+@ANDREW.CMU.EDU (Gary Keim)
Newsgroups: comp.soft-sys.andrew
Subject: Re: Exposing Message Folders
Date: 12 Nov 92 18:18:52 GMT
Distribution: world
Organization: The Internet

Excerpts from misc: 12-Nov-92 Exposing Message Folders Brian
Capouch@fearless.C (421*)

I've read and re-read the help files, and can't hit the magic combination. 

And I'm sorry to say that you won't hit the combination if you're using
the binaries off the CDROM.  We've since made it a preference, but that
doesn't help you: sorry.

Gary
From: brianc@fearless.compsci (Brian Capouch)
Newsgroups: comp.soft-sys.andrew
Subject: Exposing Message Folders
Date: 12 Nov 92 19:17:51 GMT
Article-I.D.: fearless.8f0erTW3LE06E28Lh9
Distribution: world
Organization: The Internet

I'm one of those who likes to have all my message folders showing all
the time. 

I've just recently installed the CDROM version of Andrew on all our
workstations, and the new version, after one chooses the "Read Mail"
menu option, hides all the folders except the main one. 

I've read and re-read the help files, and can't hit the magic combination. 

Any help would be appreciated. 

Brian Capouch
brianc@saintjoe.edu
From: tinglett+@rchland.ibm.com (Todd Inglett)
Newsgroups: comp.soft-sys.andrew
Subject: Re: Printers
Date: 10 Nov 92 19:01:39 GMT
Reply-To: "Todd Inglett" <tinglett@vnet.ibm.com>
Distribution: world
Organization: The Internet

Excerpts from ext.misc.info-andrew: 10-Nov-92 Re:
PrintersGarrett.Wollman@UVM.EDU (1047)

> This should actually be a fairly quick hack, if you are willing to
> depend on ghostscript.  Just create a pixmap or window on the X
server, and set the enviornment variable GHOSTVIEW

Actually, this is what I had in mind for implemented an ATK version of
apostscript previewer.  It would use ghostscript to render the
postscript in awindow, but otherwise would provide an ATK interface
consistent with ez.  Ifthe X server supports display postscript, that
can be used instead.

Let me clarify my comments about a postscript graphics class.  What I
wouldlike is a class that could render a drawing in some kind of
abstract ``page''(not necessarily a full page) much like graphic renders
bits in a window. Then my inset can generate a rectanglar drawing that
the text in which it isembedded can put somewhere in its physical output
page.  A postscriptimplementation would probably use encapsulated
postscript to do this. However, it could be subclassed for other
implementations (HPGL for example)as graphic could have different
implementations.  It could also be subclassedto produce conversions to
other document formats (Framemaker, TeX, etc)provided the function is
high level.

-todd inglett
From: Bob_Dew@ALW.NIH.GOV
Newsgroups: comp.soft-sys.andrew
Subject: Re: Printers
Date: 9 Nov 92 23:07:20 GMT
Organization: The Internet

> We are investigating having ATK print direct to Postscript, to relieve
the dependence on troff/groff and psdit.


Aren't these dependencies necessary to support ATK's "preview"?  

In the long run, I'd think a device-independent troff generator would be
more useful and less error prone than a direct ATK-->Postscript program.
 

Just a thought...

Our interpreter version is 52.3.

-Bob
From: tinglett+@rchland.ibm.com (Todd Inglett)
Newsgroups: comp.soft-sys.andrew
Subject: Re: How to I suppress page number printing in EZ ?
Date: 13 Nov 92 14:40:41 GMT
Reply-To: "Todd Inglett" <tinglett@vnet.ibm.com>
Organization: The Internet

My favorite way to suppress line numbering is to change the middle
string inthe page header using the header inset.  Here is an example:
[An Andrew ToolKit view (headrtv) was included here, but could not be
displayed.]
Use a blank character for the middle string.

-todd inglett
From: jlc@firewalladaclabs.com (Jean-Luc Chatelain)
Newsgroups: comp.soft-sys.andrew
Subject: How to I suppress page number printing in EZ ?
Date: 10 Nov 92 16:21:43 GMT
Article-I.D.: firewall.1992Nov10.082143
Organization: Adac Laboratories, Milpitas Ca

I guess the subject says it all, I would like to ezprint a document but tell
ezprint to forget about putting page numbers ?

Thank you
Jean-Luc
-- 
Jean-Luc Chatelain				VOICE: 408 321 9100 x1797
ADAC Laboratories				VMAIL: 800 SAY ADAC x1797
540 Alder Driver				INET : jlc@adaclabs.com
Milpitas, CA 95035

Disclaimer: Any opinion expressed is my own may and not reflect the views of
ADAC Laboratories
From: rr2b+@ANDREW.CMU.EDU (Robert Andrew Ryan)
Newsgroups: comp.soft-sys.andrew
Subject: Printers
Date: 9 Nov 92 21:48:10 GMT
Organization: The Internet

We are investigating having ATK print direct to Postscript, to relieve
the dependence on troff/groff and psdit.

I'm curious how many and what different Postscript interpreter versions
are being used out there.  Here we have one printer with interpreter
version 38.0, and another reports 52.3 (Here the version is reported on
the cover page, I'm not sure if that happens in general.)

The biggest issues are Level 2 operators, and ISO-Latin-1 support. 
Apparently ISO-Latin-1 support appeared in interpreter version 47.0.  In
versions prior to this there are 3 characters outright missing and a
number of others which would have to be constructed by composition of
other characters.

The following postscript code will print the interpreter version number
in the lower left corner.  If you use ATK printing (or would like to)
and you can, please print this on your printer(s) and let me know what
it says.

Thanks for any info,
-Rob Ryan
Andrew Consortium

%!
/Helvetica findfont 20 scalefont setfont
100 100 moveto version show
From: wdc@ATHENA.MIT.EDU (Bill Cattey)
Newsgroups: comp.soft-sys.andrew
Subject: Re: Who else has ez printing with groff.
Date: 12 Nov 92 16:16:34 GMT
Distribution: world
Organization: The Internet

Thanks!  It did indeed define PAGE to A4.  I'm recompiling now.
I expect it will work.

I figured it was something simple that someone already knew...

-wdc
From: wdc@ATHENA.MIT.EDU (Bill Cattey)
Newsgroups: comp.soft-sys.andrew
Subject: Who else has ez printing with groff.
Date: 12 Nov 92 07:35:58 GMT
Distribution: world
Organization: The Internet

I finally bit the bullet and compiled up groff (and gcc and g++ and
bison and libg++).

I have successfully printed ez documents on my HP Laserjet IIP+ with
Pacific Datasystems PostScript.

BUT:

All the pages are shifted up an inch so no page numbers are visible.

The speculated-about formatcommand/PrintCommand in the FAQ to enable
previewing and printing didn't work.

The preview-free command set is the one that I got to work at all.
(Although my postscript filter is different so I don't use lpr -v.)

I have incorporated Nick Williams's changes to tmac.atk and the table of
contents prints perfectly.  It really is too bad that the page numbers
don't!

I am running ATK  5.0.0 from the R5 X tape on a Sun Sparc running
SunOS 4.1.1.  (I know, I should get the updates to Sun OS and ATK, but
I haven't taken the time to bring home the CD's and do the grunt work. 
These revs of the software SHOULD work.)

Help?

-wdc
Organization: School of Computer Science, Carnegie Mellon, Pittsburgh, PA