Displaying 20 results from an estimated 1000 matches similar to: "Using ksmooth to produce the resulting plots"
2007 May 29
0
Function tsmooth
Hi,
Assume that we may model the Nottingham temperature data (nottem) or Sunspot
data (sunspot) set by a nonparametric autoregressive model of the form
Yt = m(Yt-1) + et.
Using the kernel estimation method, produce the resulting plots. We may use
the fucntion
tsmooth(x,y,"notmal",bandwidth=0.01).
How can i define x and y using data nottem and sunspot?
2005 Dec 07
2
Bandwidth selection for ksmooth( )
Dear R Users,
Before running ksmooth( ), a suitable bandwidth selection is needed. I use some functions for this task and receive these results for my data:
width.SJ(y,nb=100,method="ste") : 40.25
bcv(y,nb=100) : 40.53
ucv(y) : 41.26
bandwidth.nrd(y) : 45.43
After implementing the function ksmooth(x,y, bandwidth= each of abovementioned bandwidths), I have some NAs
1999 Jul 27
3
Preliminary version of ts package
There is now a preliminary version of a time series package in the R-devel
snapshots, and we would welcome feedback on it. It is based in part on the
packages bats (Martyn Plummer) and tseries (Adrian Trapletti) and in part
on code I had or have written. (Thanks for the contributions, Martyn and
Adrian!) Some of the existing ts code has been changed, for example to plot
multiple time series, so
2023 Oct 26
1
Inquiry about bandwidth rescaling in Ksmooth
Apologies in advance if my comments don't help, in which case, no need
to respond, but I noted in ?ksmooth:
"bandwidth
the bandwidth. The kernels are scaled so that their quartiles (viewed
as probability densities) are at ? 0.25*bandwidth." So, could this be
a source of the discrepancies you cited?
Given that ?ksmooth explicitly says:
"Note:
This function was implemented for
2023 Oct 26
1
Inquiry about bandwidth rescaling in Ksmooth
Dear Sir, Madam, or to whom this may concern,
my name is Jan Failenschmid and I am a Ph.D. student at Tilburg University.
For my project I have been looking into different types of kernel regression estimators and corresponding R functions.
While comparing different functions I noticed that stats::ksmooth returned different estimates for the same bandwidth
as other kernel regression estimators
2003 Sep 22
2
ksmooth in SPLUS vs R
I am working with a model that I have to estimate a nonparametric
function. The model is partial linear i.e.
Y=X$\beta$ + f(z) + $\epsilon$
I am using the ' double residual methods' Robinson (1988) Speckman (1988)
where I estimate a nonparametric function for each of the parametric
variables in terms of the nonparametric one i.e.
X[,i]=g(Z)+ u
this is done because I need the $E(
2005 Feb 02
4
(no subject)
can you recommend a good manual for R that starts with a data set and gives
demonstrations on what can be done using R? I downloadedR Langauage
definition and An introduction to R but haven't found them overly useful.
I'd really like to be able to follow some tutorials using a dataset or many
datasets. The datasets I have available on R are
Data sets in package 'datasets':
2010 Feb 09
1
Superimpose ksmooth() onto barplot
I'd like to superimpose a ksmooth() onto a barplot().
My data is:
> d
2009-06-20 2009-06-21 2009-06-22 2009-06-23 2009-06-24
2009-06-25 2009-06-26 2009-06-27 2009-06-28 2009-06-29 2009-06-30
2009-07-01 2009-07-02
Same Breed (B) 12.64 21.08 13.52 12.51
13.71 9.91 14.24 7.18 11.81 5.92
12.04 17.96
2006 Feb 07
2
Prediction method for lowess,loess,lokerns,lpepa,ksmooth
Hi Every Body,
I don't know why some regression functions have no related prediction function. For example lowess, loess, lokerns, lpridge, lpepa, and ksmooth.
What could help? Is there any global or wrapper function so that can help?
Regards,
Amir Safari
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2005 Dec 02
1
NA as the output of ksmooth
Dear R user,
My input data, positive and negative, is complete without missing data. After running ksmooth( ) , I receive for $y , many NAs. What could be the reasons and how can I receive complete output?
So many thanks for any help.
Amir Safari
---------------------------------
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2004 Sep 01
1
sunspot data in R 2.0.0
I noticed this in the NEWS:
o Datasets 'sunspot.month' and 'sunspot.year' are available
separately but not via data(sunspot) (which is used by package
lattice to retrieve a dataset 'sunspot').
Now, the 'sunspot' dataset included in lattice was actually a mistake, I
realized later that I instead wanted the 'sunspots' data from
2003 Jun 09
1
Questions for package ts prediction
Dear helpers,
I am trying to write a function to return prediction values using
package ts. I have written three different versions since I am not sure
what's wrong with my func2. func and func1 return the same results.But
func1 and func2 don't. In particular, the only difference between
"func1" and "func2" is the function variable name being y and data,
respectively.
2007 Jun 21
0
use ts objects within the "seas" package for seasonal stats ; to compare years with each other for change detection
Hi all,
Does anyone know how ts objects ts(base) can be used within the 'seas'
package? I would like to obtain seasonal statistics of regular
time-series and for example look at the result of the plot.seas.var()
function or use the change function() to look at change between periods
or time-series.
The nottem time-series are similar to the time-series we are analyzing
(but with
2007 Sep 07
5
unable to add IP address to eth0:0 eth0:1 etc
Hi all,
I need to (quickly!grrr) update IP addresses for which a given machine
will answer.
I did this:
/sbin/ifconfig eth0:0 xx.xx.xx.10 netmask 255.255.255.0
/sbin/ifconfig eth0:1 xx.xx.xx.11 netmask 255.255.255.0
/sbin/ifconfig eth0:2 xx.xx.xx.30 netmask 255.255.255.0
/sbin/ifconfig eth0:3 xx.xx.xx.31 netmask 255.255.255.0
/sbin/ifconfig eth0:4 xx.xx.xx.13 netmask 255.255.255.0
2017 May 31
2
stats::line() does not produce correct Tukey line when n mod 6 is 2 or 3
Le 31/05/2017 ? 17:30, Serguei Sokol a ?crit :
>
> More thorough reading revealed that I have overlooked this phrase in the
> line's doc: "left and right /thirds/ of the data" (emphasis is mine).
Oops. I have read the first ref returned by google and it happened to be
tibco's doc, not the R's one. The layout is very similar hence my mistake.
The latter does not
2007 Aug 16
1
SELinux questions, upon restarting BIND
Hi all,
On my newly up-and-running nameserver (CentOS 5), I noticed the
following alerts in /var/log/messages after restarting BIND. (lines
inserted to aid in reading).
As I'm new to SELinux, I'm hoping for some pointers on 1) if this is an
issue which simply *must* be addressed, or if it's something I should
live with, and 2) how to eliminate the warming messages without
sacrificing
2012 Apr 20
0
How to configure morethan one solr cores in sunspot.yml in same environment
Hi am using rails 2.x and outoftime-sunspot gems
I want to use morethan one solr cores and using sunspot in my
application
How to configure morethan one cores in sunspot.yml
let''s assume
Model1 using core1
Model2 using core2
How to configure them in my application
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2002 Nov 15
1
lattice: formatting tickmark labels of log scaled axes
Problem:
How can I format tickmark labels of log scaled axes of lattice
graphics in the usual `xxx'-Format (and not in the scientific
format).
Example:
(according to the help-page of xyplot):
In the first plot I get the xxx-Format,
in the second plot I get the scientific format (10^xxx):
data(sunspot)
plot( 1:37, sunspot, log='y',type='l')
xyplot( sunspot ~ 1:37,
2001 May 16
1
stl in library(ts)
I am running R 1.2.2 under Linux. When using the function stl in
the ts library, how can I save the seasonal component? What I
would like was something like:
library(ts)
data(nottem)
data.stl <- stl(nottem, "per")
x <- data.stl$sea
This what I get:
> x
NULL
I would, however, like to store in x the seasonal component.
Thanks in advance. Francisco.
--
Francisco
2007 Aug 05
2
New CentOS DNS Server woes
Hi folks,
I've put my new DNS server in place, told the primary that this IP would
be pulling zones and restarted BIND on the primary.
I configured my named.conf file to pull zones from the primary, started
BIND on the new box. Here's where I get confused
++++++++++++++++++++++++
[root at sunspot etc]# /etc/init.d/named status
number of zones: 169
debug level: 0
xfers running: 0
xfers