Displaying 20 results from an estimated 67 matches for "butterfli".
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butterfly
2012 Dec 16
3
averaging X of specific Y (latitude)
Hello
I have a table describing butterfly range traits.
It is composed of three columns as below
Species name range size (X) latitude of range midpoint (Y)
There are 11 kinds of butterflies.
Each has its range size, and the latitude of each range midpoint ranges
from 9 to 19.
I would like to have the average range size of every degree of latitude.
For example, the average range size of latitude degree 10 (10.0-10.99:
Butterfly A2, B1, B2)
Please kindly help with R code to calcul...
2012 Dec 16
1
average X value of specific Y
Hello
I have a table describing butterfly range traits.
It is composed of three columns as below
Species name range size (X) latitude of range midpoint (Y)
There are 11 kinds of butterflies.
Each has its range size, and the latitude of each range midpoint ranges
from 9 to 19.
I would like to have the average range size of every degree of latitude.
For example, the average range size of latitude degree 10 (10.0-10.99:
Butterfly A2, B1, B2)
Please kindly help with python code to c...
2007 Oct 05
3
R-2.6.0 package check problems
...n home-compiled
pre-releases of R-2.6.0.
Can anyone help me understand what is going on?
localhost:~/scratch%R CMD check untb_1.3-2.tgz
[snip]
creating untb-Ex.R ... OK
* checking examples ... ERROR
Running examples in 'untb-Ex.R' failed.
The error most likely occurred in:
> ### * butterflies
>
> flush(stderr()); flush(stdout())
>
> ### Name: butterflies
> ### Title: abundance data for butterflies
> ### Aliases: butterflies butterfly
> ### Keywords: datasets
>
> ### ** Examples
>
> data(butterflies)
> plot(butterflies, uncertainty=TRUE)...
2005 Jan 26
2
Butterflies in mdct.c
In mdct.c there's some functions including some-point butterfly. In 32-point and 16-point there are calling of smaller-point function everytime twice on each half of data. When I looked on it I found that's just linear algebra. So it can be rewritten to matrix multiplication. Some one can say: there's optimization on in register working. But imagine there's one calling 32-point,
2002 Oct 22
4
repeatedly crashing smbd when printing: broken pipe
for months, we keep fighting issues with smbd
(now at released 2.2.6), config is with spoolss,
domain logon, and the client in question is an
NT4 machine. server is a i386/linux 2.2.19
For a very long time, we thought it was related
to oplocks, but now after having them disabled,
it still is there.
Level 3 Log is as follows:
[2002/10/22 17:08:18, 3] smbd/ipc.c:reply_trans(480)
trans
2013 May 03
1
R package for bootstrapping (comparing two quadratic regression models)
...quadratic regression models with non-parametric
bootstrap.
However, I do not know which R package can serve the purpose,
such as boot, rms, or bootstrap, DeltaR.
Please kindly advise and thank you.
Elaine
The two quadratic regression models are
y1=a1x^2+b1x+c1
y1= observed migration distance of butterflies()
y2=a2x^2+b2x+c2
y2= predicted migration distance of butterflies (based on body mass)
x= body mass of butterflies
null hypothesis: a1=a2 and b1=b2 and c1=c2
bootstrap to test if the coeffients (a, b, c) of the y1 and the y2 model
differ
[[alternative HTML version deleted]]
2013 May 01
2
significantly different from one (not zero) using lm
Hello,
I am work with a linear regression model:
y=ax+b with the function of lm.
y= observed migration distance of butterflies
x= predicted migration distance of butterflies
Usually the result will show
if the linear term a is significantly different from zero based on the
p-value.
Now I would like to test if the linear term is significantly different from
one.
(because I want to know if the regression line (y=ax+...
2008 Aug 11
1
Simple lme/lmer random effects questions
...rudimentary questions regarding the random effects terms
in the lme and lmer functions. I apologize if this also partly strays
into a general statistics question, but I'm a bit new to this all. So
hopefully it'll be a quick problem to sort out...
Here is my experimental setup: I raised butterflies in 5 different
testing chambers all set to different temperatures. Within the testing
chambers, the butterflies were held in 10 different sleeves, which were
rotated daily to compensate for microenvironmental effects. I measured
several traits of the butterflies and I am constructing models f...
2005 Feb 01
1
mdct.c optimization
...ansformation matrix. Then I rewrote this matrix into sequence of additions and substractions (see attachement). As I suspected I got the same as in the original code but I swaped some rows to get little higher speed. I hope I'll do the same with 16 point butterfly function combined with 8 point butterflies in a month. Who still believe that this approach will be slower?
-------------- next part --------------
Itemize transcription of linear algebra transformation into optimized CPU operations because we know the transformation matrix.
This is the data vector with auxiliary variables A and B which...
1998 Oct 25
2
EGCS optimizer bug?
The current development version dies in qbeta() when compiled with
egcs -O, egcs 1.0.2 and glibc 2.0.7 (RedHat versions). Since this also
kill the F and t distributions, it doesn't exactly do wonders for R's
usefulness...
Anyone else seeing this or has my setup just gone out of whack? It
does look pretty much like a clear compiler bug when inlining math
functions (storing temporaries
2013 May 03
0
significant test of two quadratic regression models (lm)
Hello,
I am work with two quadratic regression models
y=ax^2+bx+c with the function of lm.
y1= observed migration distance of butterflies(y1=a1x^2+b1x+c1)
y2= predicted migration distance of butterflies (based on body mass)
(y2=a2x^2+b2x+c2)
x= body mass of butterflies
Now I would like to check the two regression model differ
by testing if the coeffients (a, b, c) of the y1 and the y2 model differ
(null hypothesis: a1=a2 and...
2002 Jul 23
1
Wierd Problem, appears Samba related perhaps?
Hello,
I'm relatively new to Samba, but have it set up on my RedHat 7.3 system, and
it's running great. Except for one thing, and I'm not sure if this is a
Samba
problem or a problem with my machines.
What the problems appears is that when I'm copying or moving images (jpegs,
bmps are the only two I've tried so far) from both my laptop and my desktop
(both Win2k mahcines),
2011 Aug 29
1
defining "id" argument in geeglm
Hi all,
I am trying to do a generalized estimating equation (GEE) with the "geepack"
package and I am not 100% sure what exactly the "id" argument means. It
seems to be an important argument because results differ considerably
defining different clusters.
I have a data set of counts (poisson distribution): numbers of butterfly
species counted every month during a period of
2015 Feb 05
5
[LLVMdev] RFC: Recursive inlining
...t interesting case for recursion in real programs. I see (qualitatively,
poorly) 3 reasons for recursion in code that should go fast:
1. A fibonnacci function in a microbenchmark or compiler shootout. I
think we can safely ignore this usecase...
2. Divide and conquer algorithms. Quicksort, FFT butterflies, etc.
3. Traversing a data structure, where the recursion is simply to get to
the leaves which is where all the fun stuff happens.
Points 2 and 3 both share a trait that they're dividing/fanning out at each
step:
void ex3(i) {
if (is_base(i)) {
f();
return;...
1998 Dec 22
1
reinstalling R
Hi,
My question is: if I want to recompile and reinstall a newer version of R
under linux, must I remove the old binaries previously installed ?
If yes where are located them?
Thanks!
Andrea.
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r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or
2003 Aug 13
1
means comparison with seasonal time series?
Dear R list,
I have a sequence of weekly observations of number of adults and larvae
in various size classes from a butterfly population living in a
subtropical area with pronounced wet and dry seasons. Wet and dry
seasons are each defined 26 weeks long with fixed start and end dates.
The data span 103 weeks (two seasons each of wet and dry) with some
missing weeks. What I would like to do is
2008 Aug 02
4
RE SHAPE package question.
Hi there,
I am trying to reorganized my data sets so that it is easy for MARK to read
it.
Basically I have the encounter histories of 1837 butterflies
The data looks like this the first 4 columns are the occasions and the last
two code for male and female
> t1 t2 t3 t4 M F
> 1 0 0 0 1 0 male capture on time1 but not seen on time 2, 3
> and 4
> 1 0 0 0 1 0 male capture on time1 but not seen on time 2...
2014 Sep 10
4
[RFC PATCH v1 0/3] Introducing ARM SIMD Support
libvorbis does not currently have any simd/vectorization.
Following patches add generic framework for simd/vectorization
and on top, add ARM-NEON simd vectorization using intrinsics.
I was able to get over 34% performance improvement on my
Beaglebone Black which is single Cortex-A8 based CPU.
You can find more information on metrics and procedure I used
to measure at
2011 Apr 07
1
Quasipoisson with geeglm
Dear all,
I am trying to use the GEE methodology to fit a trend for the number of butterflies observed at several sites. In total, there are 66 sites, and 19 years for which observations might be available. However, only 326 observations are available (instead of 1254). For the time being, I ignore the large number of missing values, and the fact that GEE is only valid under MCAR. When I...
2013 Apr 01
1
[LLVMdev] path profile result with LLVM
I want to get path profiling information with LLVM.
LLVM provides methods for path profiling.I also get the llvmprof.out
successfully. So I want to output the result.With llvm-prof ,I get the
error:llvm-prof: Unkknown packet #5.
So I have to write my own pass to output the path profiling result,the
following is my kernel codes: