Displaying 20 results from an estimated 3000 matches similar to: "Molecule-like Notation for Arrays -- anyone interested?"
2008 Aug 20
1
FYI: APL in R
http://idisk.mac.com/jdeleeuw-Public/utilities/apl/apl.R
Dedicated to the IBM 2741.
Implemented for general multidimensional arrays:
drop, take, reshape, shape, rank, select, generalized inner product,
generalized
outer product, representation, base value, join, expand, reduce, scan,
member of, ravel, compress, tranpose, rotate
Basically, the APL-I part is complete, and after some testing
2015 Jul 17
11
[Bug 91373] New: Nouveau fills kern.log with gigabytes of data when molecule screensaver is ran
https://bugs.freedesktop.org/show_bug.cgi?id=91373
Bug ID: 91373
Summary: Nouveau fills kern.log with gigabytes of data when
molecule screensaver is ran
Product: xorg
Version: unspecified
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
2003 May 26
4
spinning and flipping arrays
Hello people,
Is there some simple way of spinning and/or flipping arrays in R?
Here's what I mean.
Suppose that foo is a 2x3x4 array with the following contents: (I know
this is different than typing 'foo' at and R prompt, but I'm so used to
row major order from using APL, I have a hard time with R's output)
> foo[1,,]
[,1] [,2] [,3] [,4]
[1,] 1 2 3 4
2000 Jan 13
0
The Array Programming Languages Conference APL-Berlin-2000
Hello!
The Array Programming Languages Conference will be from
24th - 27th July 2000
Please look at:
http://stat.cs.tu-berlin.de/APL-Berlin-2000/
Chairman's Address
APL Berlin 2000 will take place in a city which is worth a visit even
without array processing languages. There is a fortunate coincidence:
Much activity in scientific and commercial institutions is based on such
languages.
2002 Dec 09
2
APL?
Hi,
is anybody out there who knows APL and would help me to translate 52
lines of APL code into propper R?
best,
Torsten
2005 Sep 28
4
A document about implementing dtrace probes in SAX
Hi,
I have mentioned before that we have added some sdt dtrace probes in SAX,
our APL interpreter. Encouraged by Angelo and Jignesh, I have created a
small document (5 pages) describing our experience with it, together with
some problems we have encountered and some scripts we use for
pretty-printing dtrace outputs.
The said document can be found at
2004 Mar 31
11
Zero Index Origin?
I'm very new to R and utterly blown away by not only the
language but the unbelievable set of packages and the
documentation and the documentation standards and...
I was an early APL user and never lost my love for it and in
R I find most of the essential things I loved about APL
except for one thing. At this early stage of my learning I
can't yet determine if there is a way to
2008 Mar 06
1
Interesting remarks about R back in 1999
Hi, this is not an R-help post, but I found this extract below that was
written by a leading mathematician back in 1999 when he was talking about
statistics and computing. I found it interesting to share and I ask your
opinion do you think this still holds today or things have changed? Thanks.
?...we would also like to mention that in our opinion Mathematica provides
an excellent and indeed
2010 Mar 01
0
Is package "dr" appropriate for reducing the dimensionality of molecules conformational space ?
I anticipate lacking of prior experience with dimensionality reduction problems.
Some scientists concerned with drug discovery performed several steered Molecular Dynamics simulations of the
alanine-dipeptide molecule dragged by a radial force from an equilibrium conformation to another different equilibrium conformation.
They sampled at regular intervals 7 dihedral angles, 5 bending angles, and
2010 Apr 14
0
ur.df ADF Unit Root Test: what is the meaning of phi1 and phi2 test statistic?
Hello,
I am using the ur.df function from the {arca} package to run the augmented
Dickey-Fuller unit root test on several time series. However; I do not
understand the econometric interpretation of the the "phi1" and "phi2"
test-statisitc which are output if you choose a "trend" or "drift" model. I
looked at the source code for the function but I do not
2008 Jun 05
0
About H323 configuration on Asterix
Hi All,
I have an Asterisk IP-PABX which I need to make the H323 channel up with an
SBC (ACME).
Does anybody have any example configuration guide for this?
I am really really new with Asterisk, well PABX in general. So any help will
be really appreciated.
Thanks in advance.
Kr,
Sema ARCA
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2000 Apr 18
0
list arithmetic
I'm an old APL fossil and I got used to work with nested arrays there.
In APL(2) you can write 1+(1 2 3)(4 5 6 7 8 9) and get (2 3 4)(5 6 7 8 9
10).
A similar concept is R's lists. So it takes me by surprise to learn that
1+list(1:3,4:9)
delivers an
Error in 1 + list(1:3, 4:9) : non-numeric argument to binary operator
Is there any particular reason why this doesn't work
2017 May 31
0
[ANNOUNCE] xkeyboard-config 2.21
Gunnar Hjalmarsson (1):
Two "Hausa" layout variants with identical descriptions
Moritz Sichert (1):
Fixed RALT config of de(T3)
Nik Kopylov (1):
Descriptions formatting, typos and mistakes v2
NikoKrause (1):
two new layouts "Russian (Germany, recommended)" and "Russian
(Germany, transliteration)" for german keyboards
Sergey Udaltsov (14):
2020 Jun 22
0
Voice broken during calls (again...)
Am 22.06.20 um 16:48 schrieb Luca Bertoncello:
> Hi list!
>
> So, now I have a business contract and a technician was here to check
> the DSL...
> Nothing found, except that for 50Mbps I need now vectoring. Really
> nice... A couple of years ago I could get 50Mbps without vectoring.
> Of course, Deutsche Telekom said nothing about this change...
>
> Well, I got it
2015 Apr 28
5
CENTOS not DoD approved
nowhere does it say that centos is approved for use in DoD. it is not on
the APL, only RedHat and SuSE
2004 Jan 11
0
Top 10 R Features
It seems to be the time of the year for top 10 lists both
looking backwards
(e.g. films: http://www.msnbc.msn.com/id/3660638/ )
and forwards
(e.g. trends: http://www.wfs.org/forecasts.htm )
In this light I think we need a list of the top 10 features
that users think R needs. Some of these are concrete while
others are vague. By R, I am referring to the entire R system
including packages, not
2001 Mar 21
1
Disconnecting: Bad packet length 2056273721.
OpenSSH-2.5.2.p1 won't connect to OpenSSH-2.5.1p2 using
version 2 protocol, quitting with the error message:
[dunlap at tesla dunlap]$ ssh -2 kraken
7a 90 3f 39 37 67 0d 9e ac 43 74 c3 83 83 f5 a2
Disconnecting: Bad packet length 2056273721.
tesla is Linux tesla.apl.washington.edu 2.2.16-3 #1 Mon Jun 19
19:11:44 EDT 2000 i686 unknown Intel RHL6.2 with OpenSSH-2.5.2.p1
compiled from sources
2010 Sep 02
3
[LLVMdev] Line number information (and other metadata)
I'd like my compiler to emit proper line number information. The docs
talk about Instruction::setDebugLoc(), but that method doesn't actually
have to be in my 2.7 LLVM Debian package. What's the correct way of
doing this?
In addition, can anyone point me at an example of how to emit a comment
attached to an instruction (or function)?
--
┌─── dg@cowlark.com ─────
2010 Aug 23
2
[LLVMdev] Indexing backwards through a structure
Given a structure like this (using C syntax rather than LLVM because I'm
still not fluent with LLVM assembly):
struct Object
{
int i1;
int i2;
int i3;
};
Then, if I have an int* pointer which I know is pointing to the i3
element, what's the best way of recovering a pointer to the structure as
a whole?
My fallback option is to cast the pointer to an int64, use getelementptr
to
2001 May 19
2
calculations on diagonals of a matrix
Given an nxm matrix A I want to compute the nxm matrix B whose ij-th
element is the sum of the elements of A lying on the diagonal that ends
with element ij, i.e.,
b_ij = a_ij + a_(i-1)(j-1) + a_(i-2)(j-2) + ...
In APL (which I no longer use), I would use the 'rotate' operator to derive
an array whose columns are diagonals of the given array and then cumulate
down columns. Is