Displaying 20 results from an estimated 2000 matches similar to: "looping through variables"
2010 Jul 20
2
data from SpatialGridDataFrame
Dear All,
I have a raster map of the class 'SpatialPointsDataFrame' and coordinates
of the class 'SpatialPoints'. I would like to retrieve the values that are
contained in the raster map at the specific locations given by the
coordinates.
Can anyone help me out?
Kind regards,
Katrin Fleischer
2010 Sep 23
2
hdf-files
Dear All,
I have data in HDF file format and would like to read it into R.
I have tried the package hdf5 without success.
Any ideas and suggestions??
Kind regards,
Katrin
--
Katrin Fleischer
Vrije Universiteit Amsterdam
Faculty of Earth and Life Sciences
Subdepartment Hydrolgy and Geo-Environmental Sciences
Room E-360
De Boelelaan 1085
1081 HV AMSTERDAM
Tel: +31 20 59 87391
2008 Oct 15
2
apply model predictions over larger area with predict()
Dear all,
I have built glm models based on presences/absences and a number of
predictor maps and would like to compute habitat suitability based on
the modelled coefficients.
I thought this is pretty straight forward and wanted to use predict()
and supply the new data in a data frame, with one column for each
predictor.
However, I do get an error msg warning me that the number of rows for
2013 Jan 30
2
recoding variables again :(
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2010 Jul 23
1
calculate slope of line
Dear All,
I fear that this is a really easy question but I do seem to go around in
circles..
I have 2 points on a plot and would like to calculate the slope of the
line drawn through these 2 points.
that cant be so hard?!
Thank you in advance,
Katrin
--
Katrin Fleischer
Vrije Universiteit Amsterdam
Faculty of Earth and Life Sciences
Subdepartment Hydrolgy and Geo-Environmental Sciences
Room
2016 Aug 05
3
enabling interleaved access loop vectorization
On 6 August 2016 at 00:18, Michael Kuperstein <mkuper at google.com> wrote:
> I agree that we can get *more* improvement with better cost modeling, but
> I'd expect to be able to get *some* improvement the way things are right
> now.
Elena said she saw "some" improvements. :)
> That's why I'm curious about where we saw regressions - I'm wondering
>
2016 Aug 07
2
enabling interleaved access loop vectorization
We checked the gathered data again. All regressions that we see are in 32-bit mode. The 64-bit mode looks good overall.
- Elena
From: Michael Kuperstein [mailto:mkuper at google.com]
Sent: Saturday, August 06, 2016 02:56
To: Renato Golin <renato.golin at linaro.org>
Cc: Demikhovsky, Elena <elena.demikhovsky at intel.com>; Matthew Simpson <mssimpso at codeaurora.org>;
2004 Aug 12
4
Problems receiving SIP calls
I can't see for the trees :)
I can make calls out to my SIP provider but get an "unable to authenticate
<calling no.> when I try to call in via the PSTN number they have supplied me
(where <calling no.> = phone number trying to make the call)
sip.conf
[general]
register => 4316568:xxxxxxxx@sipgate.de
[sipgate]
secret=xxxxxx
username=4316568
fromuser=4316568
2016 Aug 09
2
enabling interleaved access loop vectorization
Thanks Ayal!
I'll take a look at DENBench.
As another data point - I tried enabling this on our internal benchmarks.
I'm seeing one regression, and it seems to be a regression of the "good"
kind - without interleaving we don't vectorize the innermost loop, and with
interleaving we do. The vectorized loop is actually significantly faster
when benchmarked in isolation, but in
2005 Aug 15
2
randomForest Error passing string argument
I'm attempting to pass a string argument into the function
randomForest but I get an error:
state <- paste(list("fruit ~", "apples+oranges+blueberries",
"data=fruits.data, mtry=2, do.trace=100, na.action=na.omit,
keep.forest=TRUE"), sep= " ", collapse="")
model.rf <- randomForest(state)
Error in if (n==0) stop ("data(x) has 0
2006 Mar 16
2
Arrays of Model Objects, Intersections, Object Identification... ?
Hi all,
Hope you can help me with understanding how Ruby / Rails treats arrays full
of objects.
Let''s say I have to arrays of objects. Both are the same kinds of objects.
tomatoes = Fruit.find(:all, :conditions => [ ''tomato = ?'', true], :limit =>
10)
fruits = Fruit.find(:all, :limit => 10)
And I want to create an array of these objects called @my_fruits,
2005 Oct 09
1
libsmbclient - detect own workgroup
Hi,
I would like to know if there's a way to detect the workgroup of my own server with libsmbclient.
With earlier versions than 3.0.20 it was possible to use smbctx->workgroup after the context was initialized.
Since 3.0.15pre2 or so its always "WORKGROUP". Am I missing something?
Regards, Gerd Fleischer
______________________________________________________________
2018 Mar 01
1
[cfe-dev] Disabling vectorisation at '-O3'
Yes, it looks like passing ‘EnableVec’ and ‘EnableSLPVec’ to ‘Args.hasFlag’ should be replaced with ‘false’ and then it has the expected behaviour.
MartinO
From: cfe-dev [mailto:cfe-dev-bounces at lists.llvm.org] On Behalf Of Martin J. O'Riordan via cfe-dev
Sent: 01 March 2018 18:02
To: 'Richard Smith' <richard at metafoo.co.uk>
Cc: 'Clang Dev'
2016 Aug 16
2
enabling interleaved access loop vectorization
Hi Ayal, Elena,
I'd really like to enable this by default.
As I wrote above, I didn't see any regressions in internal benchmarks, and
there doesn't seem to be anything in SPEC2006 either. I do see a
performance improvement in an internal benchmark (that is, a real
workload).
Would you be able to provide an example that gets pessimized? I have no
doubt you've seen regressions
2008 Sep 08
3
extracting max row from data matrix
dear group,
i have a data matrix with some replicate items with different values. I want to extract the row with max value.
for example:
> x
fruit weight
1 apple 1.3
2 apple 1.5
3 apple 1.6
4 orange 1.4
5 orange 1.6
x is a data frame.
I want to extract unique items from fruits that has max weight.
that is:
3 apple 1.6
5 orange 1.6
I want to be able to use
2016 Aug 05
2
enabling interleaved access loop vectorization
On 5 August 2016 at 21:00, Demikhovsky, Elena
<elena.demikhovsky at intel.com> wrote:
> As far as I remember, may be I’m wrong, vectorizer does not generate
> shuffles for interleave access. It generates a bunch of extracts and inserts
> that ought to be coupled into shuffles after wise.
That's my understanding as well.
Whatever strategy we take, it will be a mix of telling
2010 Dec 03
1
treatment effects with lme (repeated measurements)
Dear,
I want to analyze an outcome in an RCT using lme but I am not sure that I have chosen the right way for the model.
We measured the outcome three times repeatedly in the same patient. One time before intervention and two times after intervention. I wanted to adjust for the correlated data in the repeated measurement and baseline differences in the variable in order to get the treatment
2007 May 13
1
Dropdown boxes in tcltk and R
Hello,
I'm very much a newbie in R and more so in tcltk so apologies if this
question is stupid. Basically I am trying to use the combobox example
found here:
http://bioinf.wehi.edu.au/~wettenhall/RTclTkExamples/DropDown.html .
What I want to do is in that example get fruitChoice as a variable in R
in general. When I run that code, however, and the ask for fruitChoice
it says
2001 Mar 14
3
get statistics by group
Hi,
I have a data set look like this:
=================================
Fruit Quty
apple 20
banana 10
orange 17
apple 30
apple 15
orange 26
banana 15
.........and so on ..........
=================================
The level of fruit is 30, that is, there are 30
different fruits. I'd like to compute some simple
statistics for each different fruit and get output
like this:
2016 Aug 30
2
Questions on LLVM vectorization diagnostics
Hi Hideki,
Thanks for the interesting writeup!
> On Aug 27, 2016, at 7:15 AM, Renato Golin via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>
> On 25 August 2016 at 05:46, Saito, Hideki via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
>> Now, I have one question. Suppose we'd like to split the vectorization decision as an Analysis pass and vectorization