Displaying 20 results from an estimated 1000 matches similar to: "Restricted Domain Optimization Problem"
2012 Mar 10
1
How to improve the robustness of "loess"? - example included.
Hi,
I posted a message earlier entitled "How to fit a line through the
"Mountain crest" ..."
I figured loess is probably the best way, but it seems that the
problem is the robustness of the fit. Below I paste an example to
illustrate the problem:
tmp=rnorm(2000)
X.background = 5+tmp; Y.background = 5+ (10*tmp+rnorm(2000))
X.specific = 3.5+3*runif(1000);
2007 Jun 12
0
distribution graph
The following gives two functions for producing distribution graphs:
distribution-graph
produces a single graph, and
multiple.distribution.graph
produces a number of graphs side by side.
Regards,
Tore Wentzel-Larsen
statistician
Centre for Clinical research
Armauer Hansen house
Haukeland University Hospital
N-5021 Bergen
tlf +47 55 97 55 39 (a)
faks +47 55 97 60 88 (a)
email
2003 Jul 01
2
Computations slow in spite of large amounts of RAM.
Hi all,
I am a beginner trying to use R to work with large amounts of
oceanographic data, and I find that computations can be VERY slow. In
particular, computational speed seems to depend strongly on the number
and size of the objects that are loaded (when R starts up). The same
computations are significantly faster when all but the essential
objects are removed. I am running R on a machine
2012 Dec 03
1
Resampling Help Needed
I am using package ks() to build 3D representations of bird territories and
calculate territory volume from spatial data (simply x, y, and z
coordinates). What I want to do is determine at what sample size (#
locations collected) does the territory volume stop increasing. This should
give me an idea of the number of points needed for future seasons.
So I have a couple of birds each with 200
2011 Aug 15
0
Indexing Permutation Values
R-help -
This code iterates over a function with 2 free parameters to find a list of
values (which are the number of incorrect predictions for a computational
model). I want to find the values of i,e when there is the minimum number
of incorrect predictions. In other words, the value of "i" and "e" when
variable "thesum" is at the lowest possible number. The
2006 Mar 27
2
A plotting question - how to get error bars?
Dear R list,
Can anyone help with a plotting question? I'm trying to display some data
on a plot and I've almost got the format I need (see code below), but 2
things I can't get:
1. How to get "Jan","Feb","Mar" on the x=axis instead of 1:3?
2. How to get "T"s on the end of my error bars like you have in standard
scientific plots?
Any comments
2006 Jan 26
1
Using special characters
Dear R users
I'm having problems in putting special characters (like 佱, 併, 佺 ) in my plots, as much in titles, as in axis names, as in legend...when I save them as a pdf document. They don't appear...
I don't know if it is because I'm using a linux platform...
The script is the following:
library(grDevices) jpeg(file="Fronteira/FronteiraNova.jpeg",
2012 Jun 12
0
Help needed with Elographics touchscreen
I'm trying to get an Elographics serial touchscreen working with CentOS
6.2 using the xorg-x11-drv-elographics driver.
Touching the screen will wake it up if the screen has blanked, but it
never moves the cursor on the screen. There is also a keyboard and mouse
connected while I'm trying to get this going and they are loaded
automatically and using the evdev driver.
Here are the relevant
2006 Mar 27
0
not a problem: a submission (PR#8714)
Full_Name: TOBY MARTHEWS
Version: 2.1.1
OS: Windows XP
Submission from: (NULL) (139.133.7.38)
I think you should have better examples on the ?plot man page, if you don't mind
me saying. Can I suggest something like this, which would probably stop so many
emails to the R help about how to put on error bars
Cheers,
Toby M
******************************
xvalsT1=1:3
yvalsT1=c(10,20,30)
2017 Dec 09
0
Remove
> On Dec 8, 2017, at 6:16 PM, David Winsemius <dwinsemius at comcast.net> wrote:
>
>
>> On Dec 8, 2017, at 4:48 PM, Ashta <sewashm at gmail.com> wrote:
>>
>> Hi David, Ista and all,
>>
>> I have one related question Within one group I want to keep records
>> conditionally.
>> example within
>> group A I want keep rows that
2017 Dec 09
1
Remove
You could make numeric vectors, named by the group identifier, of the
contraints
and subscript it by group name:
> DM <- read.table( text='GR x y
+ A 25 125
+ A 23 135
+ A 14 145
+ A 35 230
+ B 45 321
+ B 47 512
+ B 53 123
+ B 55 451
+ C 61 521
+ C 68 235
+ C 85 258
+ C 80 654',header = TRUE, stringsAsFactors = FALSE)
>
> GRmin <- c(A=15, B=40, C=60)
> GRmax <-
2009 Jun 09
1
scatterplot (car) legend modification
hi,
new to R and using the car package to do some scatterplots with ellipses
hoping to add the area and center points of each ellipse to the legend?
looking for some direction / ideas.... here is the script, the data is
where
golf shots end up by club.
x (dispersion), y (distance), group (Club)
thanks, sam
## usage: Rscript shotScatter.R infile outfile level1 level2 minX maxX
minY maxY
2014 Jun 15
0
[PATCH v2 1/3] nvc0: implement multiple viewports/scissors, enable ARB_viewport_array
Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann at mni.thm.de>
---
src/gallium/drivers/nouveau/nvc0/nvc0_context.h | 7 +-
src/gallium/drivers/nouveau/nvc0/nvc0_program.c | 2 +-
src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 20 ++--
src/gallium/drivers/nouveau/nvc0/nvc0_screen.h | 3 +
src/gallium/drivers/nouveau/nvc0/nvc0_state.c | 27 +++--
2014 Jun 14
0
[PATCH 1/3] nvc0: implement multiple viewports/scissors, enable ARB_viewport_array
Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann at mni.thm.de>
---
src/gallium/drivers/nouveau/nvc0/nvc0_context.h | 7 +-
src/gallium/drivers/nouveau/nvc0/nvc0_program.c | 2 +-
src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 20 ++--
src/gallium/drivers/nouveau/nvc0/nvc0_screen.h | 3 +
src/gallium/drivers/nouveau/nvc0/nvc0_state.c | 27 ++++-
2019 Aug 08
0
Producing different text formats in R
>>>>> "Llu?s" == <Lluis.Hurtado at uv.es> writes:
Llu?s> Dear all,
Llu?s> I am facing a strange problem with text files formats.
Llu?s> I am currently using a C++ code named voro++ (http://math.lbl.gov/voro++/). This code accepts text files with four columns:
Llu?s> <id> <x> <y> <z>
Llu?s> where id is
2019 Aug 08
3
Producing different text formats in R
Dear all,
I am facing a strange problem with text files formats.
I am currently using a C++ code named voro++ (http://math.lbl.gov/voro++/). This code accepts text files with four columns:
<id> <x> <y> <z>
where id is an identification number and x,y,z are the coordinates of a point in a 3D space.
The input file, name it myfile_cpp.txt, is generated by another C++ code
2009 Jun 18
0
area of ellipses (car)
hi,
i am using this script on our webserver to plot data / draw ellipses
for a flex movie...
would like to add the areas of the ellipses to another legend just
like the means for
the distance.
the data looks like: x (dispersion), y (distance), Club (name of
the club for grouping)
thanks, sam
## usage: Rscript nikeScatter.R infile outfile level1 level2 minX maxX
minY maxY
## load
2012 Jul 19
1
Change log(J) to log(J+1) to stop log(0) from occurring in harModel
I think the code is part of the RTAQ package but is not included in it, as I
obtained it from
https://r-forge.r-project.org/scm/viewvc.php/pkg/RTAQ/R/HAR_model.R?view=markup&root=blotter&sortby=author&pathrev=1028.
It is not my code and I make no claim to other's good work, and apologize if
I should even be posting it I am not sure, but in the transform function it
allows to
2009 Apr 08
0
[PATCH/Gallium] nv50: update nv50_clear to new interface
Commit eb168e26aa63f11a47d70c4555cae30691a2cd57 changed the way
pipe->clear works so I figured I'd try to make an updated version, so
below is the diff - my concerns/uncertainties should be contained in
the comments.
Or maybe you want to do it the way NV40 does it, just calling
surface_fill through a utility function (althoug this does currently
seem to only clear one color buffer) .
2011 Mar 02
2
*** caught segfault *** when using impute.knn (impute package)
hi,
i am getting an error when calling the impute.knn
function (see the screenshot below).
what is the problem here and how can it be solved?
screenshot:
##################
*** caught segfault ***
address 0x513c7b84, cause 'memory not mapped'
Traceback:
1: .Fortran("knnimp", x, ximp = x, p, n, imiss = imiss, irmiss,
as.integer(k), double(p), double(n), integer(p),