Displaying 17 results from an estimated 17 matches for "ehmgs2".
1999 Oct 15
2
IEEE_754 logic
...f "classification MACROS". If an
implementation implements this standard, autoconf misses isnan() and isfinite().
=============================================================================
Thomas Hoffmann, Institut fuer Halbleiter- und Mikrosystemtechnik, TU Dresden
E-mail: hoffmann@ehmgs2.et.tu-dresden.de
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2000 Oct 11
5
"Executing" a string
...docs, but have not
found a way to do something equivalent (which is possible, I think).
Can anybody give me a pointer?
=============================================================================
Thomas Hoffmann, Institut fuer Halbleiter- und Mikrosystemtechnik, TU Dresden
E-mail: hoffmann at ehmgs2.et.tu-dresden.de
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1999 Oct 13
3
main/character.c (et.al): dangerous AllocBuffer()
I was hit by ugly crashes of R, when I tried to read big data sets ("volcano").
So I looked into the code and found the following in character.c (triggered by substr()):
I assume that the helper function AllocBuffer() shall facilitate an economic memory management. But
the use of realloc() in the else-branch does not conform to ANSI and may hit you with certain
compilers.
When called
1999 Oct 13
3
main/character.c (et.al): dangerous AllocBuffer()
I was hit by ugly crashes of R, when I tried to read big data sets ("volcano").
So I looked into the code and found the following in character.c (triggered by substr()):
I assume that the helper function AllocBuffer() shall facilitate an economic memory management. But
the use of realloc() in the else-branch does not conform to ANSI and may hit you with certain
compilers.
When called
2001 Mar 16
1
Catching error messages (from nls(), e.g.)
...;control information" or at least
just returning from nls() without a model.
Is there a simple way to handle this?
=============================================================================
Thomas Hoffmann, Institut fuer Halbleiter- und Mikrosystemtechnik, TU Dresden
E-mail: hoffmann at ehmgs2.et.tu-dresden.de
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1999 Oct 25
1
gc_inhibit_torture definition twice?
...tart;
Rstart Rp = &rstart;
gc_inhibit_torture = 1;
Can anybody explain the reason for this implementation?
=============================================================================
Thomas Hoffmann, Institut fuer Halbleiter- und Mikrosystemtechnik, TU Dresden
E-mail: hoffmann@ehmgs2.et.tu-dresden.de
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2001 Apr 09
1
Support for compartment models / matrix exponential method
...owing the recipe in Jennrich/Bright (or is there
even a superior method for this kind of tasks that I am not aware of)?
=============================================================================
Thomas Hoffmann, Institut fuer Halbleiter- und Mikrosystemtechnik, TU Dresden
E-mail: hoffmann at ehmgs2.et.tu-dresden.de
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2000 Sep 15
3
R on HP-UX, again: modreg.sl fails, 1 arith test fails
...smallish Win95 computer. But with failed arithmetic tests I am not that
confident in the results I will get ...
Thomas.
=============================================================================
Thomas Hoffmann, Institut fuer Halbleiter- und Mikrosystemtechnik, TU Dresden
E-mail: hoffmann at ehmgs2.et.tu-dresden.de
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2000 Oct 12
1
Accumulating data row by row into a data frame
...<---first result
2 10 110 87 <---2nd result .....
Is a data frame the best solution for this, anyway?
=============================================================================
Thomas Hoffmann, Institut fuer Halbleiter- und Mikrosystemtechnik, TU Dresden
E-mail: hoffmann at ehmgs2.et.tu-dresden.de
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2000 Oct 04
5
postscript preview
gday R friends,
I was wondering if anyone could help me with some graphics issues please.
I'm processing R in batch on redhat6.2 with some graphics to be imported
into msword on NT. For scaling within my doco I want some vector type
graphics. win.metafile doesn't seem to be supported on redhat which gives
me postscript. postscript is ideal but doesn't contain a preview so I
1999 Oct 12
1
Looking for R_Home ...
This is my first question to this list and possibly a bit dumb, but anyway:
Can anybody tell me, where, e.g. in the "unix" reference release a DEFINITION of
char * R_Home can be found? Via Defn.h the "extern" DECLARATION is everywhere,
but when I derived a somewhat other main() program my linker complained about the
missing definition.
Thomas Hoffmann.
1999 Oct 13
1
formatReal()-bug (or Is there anybody out there w/o IEEE754?)
On a system with IEEE_754 undefined, I run into an bug, when the value
of an element of the first argument (e.g., x[0]) of formatReal() is NA:
1. (format.c:235) if (!R_FINITE ..) gives nanflag=1 (!naflag remains 0)
2. (format.c:272..288) *m gets an value of -2147483643 (from the format
fiddling, should not matter to us)
3. (format.c:289) because naflag is zero, m does not
2000 Mar 09
1
Conditional for XDR code left out in saveload.c (PR#478)
Full_Name: Thomas Hoffmann
Version: 1.0.0
OS: OS/2 Warp 4.0 FP 11
Submission from: (NULL) (141.30.125.20)
I autoconfigured/configured the src'es w/o having XDR (#undef HAVE_RPC_XDR_H).
In saveload.c , at the beginning of the file the XDR code is enclosed by
matching #ifdefs.
But in the NEW_SAVE_FORMAT section, there are no #ifdefs around the XDR code.
Does this imply that using the new
2000 Sep 13
0
Compiling R on HP-UX: "DP relative code"
...s
make[4]: *** [ctest.sl] Error 1
The question seems to be: How can I build a position independent libg2c.a under HPUX?
=============================================================================
Thomas Hoffmann, Institut fuer Halbleiter- und Mikrosystemtechnik, TU Dresden
E-mail: hoffmann at ehmgs2.et.tu-dresden.de
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1999 Nov 04
1
R_OpenSiteFile: Do not use a null ptr as filename in fopen (PR#312)
I get crashes when I call R without any arguments and having no
environment variables R_PROFILE and RPROFILE.
The reason is, that in unix/sys-common.c in R_OpenSiteFile() fopen
is called with a null ptr as filename (because this is the outcome
of getenv()).
Although most compilers seem to interpret this as "file not found",
this is an undefined behavior concerning to all C standards
2001 Mar 30
5
PICT output?
hi, all. I use R on a unix (linux) box and am quite happy with it.
However, sometimes I need to create a graph that needs to be used with
Microsoft Word or Powerpoint (ug). I can create a png or jpeg format
picture, but the text look pretty crummy because jpeg is bitmapped. I
can also create a PS/EPS version (my preference), but then it doesn't
display properly in word or powerpoint (but it
1999 Nov 07
1
Bug list summary (automatic post)
...99 07:53:58 +0000 (GMT)
* PR# 311 *
Subject: bug in Rdconvlib.pl converting to latex
From: Ray Brownrigg <Ray.Brownrigg@mcs.vuw.ac.nz>
Date: Thu, 4 Nov 1999 11:16:49 +1300 (NZDT)
* PR# 312 *
Subject: R_OpenSiteFile: Do not use a null ptr as filename in fopen
From: Thomas Hoffmann <hoffmann@ehmgs2.et.tu-dresden.de>
Date: Thu, 4 Nov 1999 10:08:45 +0100 (MET)
* PR# 313 *
Subject: rpart problem
From: "Potter, David M" <david_m_potter@groton.pfizer.com>
Date: Fri, 5 Nov 1999 13:09:50 -0500
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