Displaying 20 results from an estimated 10000 matches similar to: "[LLVMdev] RFC: Using hashing for switch statements"
2007 Jul 15
1
NNET re-building the model
Hello,
I've been working with "nnet" and now I'd like to use the weigths, from
the fitted model, to iterpret some of variables impornatce.
I used the following command:
mts <- nnet(y=Y,x=X,size =4, rang = 0.1,
decay = 5e-4, maxit = 5000,linout=TRUE)
X is (m x n) Y is (m x 1)
And then I get the coeficients by:
Wts<-coef(mts)
b->h1 i1->h1
2003 Sep 25
1
apply on a 4D array
I am trying to multiply a 3D array of 4x4x4 by the 4 3D arrays of a 4D array
with dimensions 4x4x4x4 (the last dimension being the one that I want to
split by).
(4x4x4 array)
> hiaAry
, , a1
i1 i2 i3 i4
h1 9.5936098 6.001040 0.08772 0.3138600
h2 1.2003500 1.454570 2.79248 0.0000000
h3 0.1346500 0.201220 0.39256 0.5464000
h4 0.0109000 0.012270 0.16417 0.2766900
,
2012 Jul 03
5
Is it possible to remove this loop? [SEC=UNCLASSIFIED]
Hi all,
I would like create a new column in a data.frame (a1) to store 0, 1 data converted from a factor as below.
a1$h2<-NULL
for (i in 1:dim(a1)[1]) {
if (a1$h1[i]=="H") a1$h2[i]<-1 else a1$h2[i]<-0
}
My question: is it possible to remove the loop from above code to achieve the desired result?
Thanks in advance,
Jin
Geoscience Australia Disclaimer: This e-mail
2017 Mar 20
1
Fwd: Possible memory problems with mallloc when called with .C()
Hello,
I'm trying to calculate a certain distance estimator for my thesis. I have a
program in C that works fine when I call it with .C() in R, but since
I'm dealing with big matrices like 30000x20000 it was getting a stack
overflow. Now I have the same program but more efficeintly coded using
malloc, and it works perfectlry in C, compiles well with R CMD SHLIB
but when I call it with
2010 May 11
2
Can not restore domain from a shared state file
Hi,
I have two KVM host: h1 and h2, both of them mount an NFS directory as a
shared storage.
I can save (virsh save <domain> <file>) a domain in h1 to a state file in
the shared storage successfully, but failed to restore it from h2 with the
following error message:
# virsh restore testRes.dat
error: Failed to restore domain from testRes.dat
error: operation failed: failed to start VM
2018 Mar 26
2
murmurhash3 test failures on big-endian systems
Hi Aki,
On 15:55 Mon 26 Mar , Aki Tuomi wrote:
> On 26.03.2018 15:49, Apollon Oikonomopoulos wrote:
> > Hi,
> >
> > The dovecot 2.3.0.1 Debian package currently fails to build on all
> > big-endian architectures[1], due to murmurhash3 tests failing. The
> > relevant output from e.g. s390x is:
> >
> > test-murmurhash3.c:22: Assert(#8) failed:
2009 May 29
1
Backpropagation to adjust weights in a neural net when receiving new training examples
I want to create a neural network, and then everytime it receives new data,
instead of creating a new nnet, i want to use a backpropagation algorithm
to adjust the weights in the already created nn.
I'm using nnet package, I know that nn$wts gives the weights, but I cant
find out which weights belong to which conections so I could implement the
backpropagation algorithm myself.
But if anyone
2009 Nov 06
2
Binning of integers with hist() function odd results (PR#14046)
Full_Name: Gerald Guglielmo
Version: 2.8.1 (2008-12-22)
OS: OSX Leopard
Submission from: (NULL) (131.225.103.35)
When I attempt to use the hist() function to bin integers the behavior seems
very odd as the bin boundary seems inconsistent across the various bins. For
some bins the upper boundary includes the next integer value, while in others it
does not. If I add 0.1 to every value, then the
2009 Jul 23
1
howto create a list row-by-row as input to function call?
Hi,
I'm having trouble within my function CalcPos to get it to call
CalcHorz with values from each row. I *think* it's calling CalcHorz
with the final values of the inputs and not the values from each row.
How can I do this properly in R?
The values aa,bb,cc,dd are inputs. CalcPos first calculates V1 and
V2 vertically, and then I attempt to call CalcHorz to handle H1, H2 &
H3
2010 Dec 10
2
Need help on nnet
Hi,
Am working on neural network.
Below is the coding and the output
> library (nnet)
> uplift.nn<-nnet (PVU~ConsumerValue+Duration+PromoVolShare,y,size=3)
# weights: 16
initial value 4068.052704
final value 3434.194253
converged
> summary (uplift.nn)
a 3-3-1 network with 16 weights
options were -
b->h1 i1->h1 i2->h1 i3->h1
16.64 6.62 149.93
2005 Aug 04
1
[Bug 2947] stdout with [-v] -H --link-dest and slink/sock/fifo/regf
https://bugzilla.samba.org/show_bug.cgi?id=2947
wayned@samba.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
------- Additional Comments From wayned@samba.org 2005-08-03 16:45 -------
Keep in mind that --link-dest only hard-links regular
2013 Jan 23
1
Arguments passing through dot-dot-dot lose ability to check for missing()?
Hi R-devel. Is the following behavior in g1() and h1() expected? It seems
to make "..." arguments work slightly differently from named arguments.
#missing() has the property that it looks "up the chain"
#for example, "z" can be missing in f3 even if
#that argument did have a name ("y") in f2
f1 <- function(x, ...) {
cat("In f1, missing(x) is
2002 Sep 06
3
Histogram Ranking
Hello,
This is not exactly an R question, but I suspect that there is an R
procedure that does what I am calling (for lack of a better name)
"histogram ranking".
I'm trying to evaluate a set of regression features by segregating by
target class and comparing the feature histograms. My idea is that if the
histograms are the same for two different classes then there is no
2009 Jun 23
2
curvedarrow (some graphics problem)
Hi there,
I just wonder how to draw this kind of picture...
http://www.nabble.com/file/p24158796/b.jpg
http://www.nabble.com/file/p24158796/a.jpg
and this is what i have done
%%%%%
library(shape)
library(diagram)
curve(sin(x),bty="n",-8,8,yaxt="n",ylab="",xaxt="n",type="n",xlab="")
axis(1,labels=F,at=seq(-8,8,1))
2009 Jul 16
3
md2html.awk and a question
Hello,
I have just subscribed to this list. I will introduce myself: For some
time, I have kept a markdown implementation in awk for personal use,
different from other implementations. Now, I'm in the process of
rewriting it and I'm trying to do it as compatible as possible.
There are many questions I have, I know some test suites and am trying
to pass those tests. When I don't know
2010 Nov 03
2
memory allocation problem
Hi R users
I am trying to run a non linear parameter optimization using the
function optim() and I have problems regarding memory allocation.
My data are in a dataframe with 9 columns. There are 656100 rows.
>head(org_results)
comb.id p H1 H2 Range Rep no.steps dist aver.hab.amount
1 1 0.1 0 0 1 100 0
0.2528321
2009 May 04
1
Nelson-Aalen estimator of cumulative hazard
Hi,
I am computing the Nelson-Aalen (NA) estimate of baseline cumulative hazard in two different ways using the "survival" package. I am expecting that they should be identical. However, they are not. Their difference is a monotonically increasing with time. This difference is probably not large to make any impact in the application, but is annoyingly non-trivial for me to just
2012 Apr 14
7
undefined method `model_name' for NilClass:Class
Hi guys,
I just started using Ruby on Rails. After implementing the RoR blog
tutorial I started with my own data model.
Sadly I am not able to get my create page running.
Model:
class Activity < ActiveRecord::Base
validates :activity, :presence => true
validates :forKids, :presence => true
validates :start_date, :presence => true
end
Controller:
class ActivitiesController <
2011 Sep 15
1
Questions on 'lme' function, urgent!
Hi Dear all,
I have some gene expression data samples from different tissue types
-----------------------------------------------
- 120 samples from blood (B)
- 20 samples from Liver (L)
- 15 samples from Kidney (K)
- 6 samples from heart (H)
-----------------------------------------------
All the samples are from different individuals, so there are in total 161
individuals from which the DNA was
2011 Jan 25
0
[LLVMdev] LLVM targeting HLLs
David Given <dg at cowlark.com> writes:
> The obvious place to start on this is the C backend, except in these 2.8
> days the C backend is so hedged about with caveats I'm rather wary of
> basing anything on it. I also recall seeing comments here that it's due
> for a rewrite from scratch, and that various people were looking into
> it. Can anyone go into more detail