Displaying 20 results from an estimated 25 matches for "cses".
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2002 May 02
2
problem with lme in nlme package
...version 3.1-24 of nlme in R 1.4.1 under Windows 2000, and both
S-PLUS 2000 and 6.0, again under Windows 2000.
I've noticed discrepancies in a couple of instances. Here's one, using data
from Bryk and Raudenbush's Hierarchical Linear models:
From R:
> attach(Bryk)
> cses <- meanses <- numeric(length(ses)) # initialize
> for (sc in unique(school)) {
+ meanses[school==sc] <- mean(ses[school==sc])
+ cses[school==sc]<-ses[school==sc]- meanses[school==sc]
+ }
> Bryk$cses <- cses
> Bryk$meanses <- mean...
1998 Mar 05
1
User time and system time
...ame machine
but R is much slower - like an order of magnitude - than S-PLUS on
this problem.
It looks curious to me when I run system.time() on this that timing
vector shows almost no user time but a huge amount of system time.
R> system.time(assign("fm2",
+ lme(MathAch ~ MEANSES*CSES + Sector + CSES:Sector, ttt, ~ CSES | School,
+ RML = TRUE )))
iteration = 0
Step:
[1] 0 0 0
Parameter:
[1] 2.61400 0.16608 3.88195
Function Value
[1] 44964
Gradient:
[1] -0.014379 -0.143176 -0.646558
iteration = 1
Step:
[1] 0.002888 0.028756 0.129857
Parameter:
[1] 2.61688 0...
2006 Nov 27
1
Help with response CIs for lme
Hi,
Can someone please offer a procedure for going from CIs produced by
intervals.lme() to fixed-effects response CIs.
Here's a simple example:
library(mlmRev)
library(nlme)
hsb.lme <- lme(mAch ~ minrty * sector, random = ~ 1 | cses, Hsb82)
(intervals(hsb.lme))
(hsb.new <- data.frame
minrty = rep(c('No', 'Yes'), 2),
sector = rep(c('Public', 'Catholic'), each = 2)))
cbind(hsb.new, predict(hsb.lme, hsb.new, level = 0))
Is the following correct (I know from the previous command that t...
2006 Mar 23
0
HABTM relationship
Hi all,
I''ve got the following two objects and the habtm relationship isn''t
putting records in the DB:
class Cse < ActiveRecord::Base
has_and_belongs_to_many :conditions
end
class Condition < ActiveRecord::Base
has_and_belongs_to_many :cses
end
I''m creating a Cse object and filling the collection of Conditions, then
calling save on the Cse object. Nothing is getting saved in the
conditions_cses table. Is there anyway to do fill the collection of
conditions prior to saving the cse object?
--
Posted via http://www.ruby-...
2009 Nov 03
1
hierarchical clustering with Jaccard index
hi,
I want to do hierarchical clustering with Jaccord index. I tried to do with vegan package for finding index and hierarchical clustering with hclust function. While doing clustering it is showing an error message as "invalid distance method". I would be grateful if anyone tells how to rectify the error.
Thanks in advance,
kind regards,
Ms.Karunambigai M
PhD Scholar
Dept. of
2009 Apr 07
1
axis values on lattice log-scale plot
...ues display as simply numeric (i.e., 10,100,1000, ... on
the X axis and proportions on the Y axis).
Suggestions much appreciated.
R 2.8.1 on mac OSX 10.4.11
Don McKenzie, Research Ecologist
Pacific WIldland Fire Sciences Lab
US Forest Service
Affiliate Professor
College of Forest Resources
CSES Climate Impacts Group
University of Washington
desk: 206-732-7824
cell: 206-321-5966
dmck at u.washington.edu
donaldmckenzie at fs.fed.us
2009 Aug 24
1
Unique command not deleting all duplicate rows
Hello everyone, when I run the "unique" command on my data frame, it deletes
the majority of duplicate rows, but not all of them. Here is a sample of my
data. How do I get it to delete all the rows?
6 -115.38 32.894 195 162.94 D 8419 D
7 -115.432 32.864 115 208.91 D 8419 D
8 -115.447 32.773 1170 264.57 D 8419 D
9 -115.447 32.773 1170 264.57 D 8419 D
10 -115.447 32.773 1170
2011 Mar 11
1
Partial Cross Correlation
Does anyone know of any R code for computing partial cross-correlation? I have examples of cross correlation functions (ccfs) that are not smooth but rather consist of a peak of several high values in consecutive lags, with sharp drops on either side. This indicates that y(t) is a function of some average of x(t-tau) at the set of lags tau over which the ccf is high. I could sort out these
2011 Jul 25
1
ARIMA simulations
Hello,
I have estimated an ARIMA model and I would like to make simulations from
this estimated model 1,5 and 10 steps ahead. Does anybody know how to do
this?
Thank You
Felipe Parra
[[alternative HTML version deleted]]
2011 Apr 18
2
Using jitter function with differing variable lengths
Hi,
I am trying to make a scatter plot with 4 different categories using the
jitter function. My code returns a variable length error and will not plot
because my four categories have different numbers of samples. When I delete
samples from my spreadsheet so that each of the categories has the same
number of variables, it plots just fine.
Is there any way to get around this and plot all of my
2006 Dec 01
2
package installation fails only for "sp"
...hank you
for your time.
--
___________________________________
Don McKenzie, Research Ecologist
Pacific Wildland Fire Sciences Lab
USDA Forest Service
400 N 34th St. #201
Seattle, WA 98103, USA
(206) 732-7824
donaldmckenzie at fs.fed.us
Affiliate Assistant Professor
College of Forest Resources
CSES Climate Impacts Group
University of Washington
dmck at u.washington.edu
2009 Oct 04
3
Stranger Behavior -maybe not
Hello everyone,
When I run a for loop I noticed that the looping variable gets assigned the
last value in the loop:
For example, if I let h=200, and I run
for(i in 1:h),
i gets the value 200. What's wrong here?
--
-Tony
[[alternative HTML version deleted]]
2009 Sep 16
2
How not to keep the redundant space when convert a data frame with as.matrix()?
Hi,
The first column in as.matrix(x) has extra spaces (" "), which I don't
want. Is there a way not to generate those spaces?
Regards,
Peng
> x=data.frame(x=1:10,y=letters[11:20])
> as.matrix(x)
x y
[1,] " 1" "k"
[2,] " 2" "l"
[3,] " 3" "m"
[4,] " 4" "n"
[5,] " 5"
2008 Jan 29
1
coherency and phase plots
I am having a hard time interpreting the phase and coherency plots.
x is two timeseries that occur at the same time i.e.
a b
1 11.2 12.3
16 11.3 12.4
31 11.4 12.5
46 11.5 12.6
...etc
even though my example is does not show this they are oscillating at
more or less the same frequency just shifted by t=x (imagine two sine
waves offset with the 2nd sine
2011 Mar 01
3
Export R dataframes to excel
I'm trying to do this in several ways but havent had any result. Im asked to
install python, or perl.... etc. Can anybody suggest a direct, easy and
understandable way? Every help would be appreciated.
Thx.
--
View this message in context: http://r.789695.n4.nabble.com/Export-R-dataframes-to-excel-tp3330399p3330399.html
Sent from the R help mailing list archive at Nabble.com.
2011 Sep 18
2
graph bugs using R on MAC
This is has been bugging me for a long time. Nobody around me seems to
have this problem. I hope someone on the forum could help me.
When I generate a R graph and want to bring the image into Word. I
cannot copy and paste it like many of my classmates can do. The
"Select" in Edit menu have all options grayed out. So what I ended up
doing is to save it as pdf file and bring it
2008 Sep 16
5
How to find the index
Dear R experts,
i have a vector z , i have to do something after z is sorted. how
can i find the original index, i.e., before sorting, of a certain
element in the sorted vector .
thanks in advance
regards
-----------------------------------------------
Peng Jiang ?? ,Ph.D. Candidate
Antai College of Economics & Management
????????
Department of Mathematics
???
Shanghai Jiaotong
2011 Mar 04
4
cv.lm syntax error
Dear all,
I've tried a multiple regression, and now I want to try a cross-validation.
I obtain this error (it must be sth related to df) that I don't understand,
any help would be appreciated.
cv.lm(df= dat, lm2.52f, m=3)
Error en `[.data.frame`(df, , ynam) : undefined columns selected
lm2.52f is my lm object, dat is a dataframe where the variables involved in
.lm are
I tried CVlm
2015 Feb 27
1
[LLVMdev] [RFC] AArch64: Should we disable GlobalMerge?
On Fri, Feb 27, 2015 at 2:13 PM Ahmed Bougacha <ahmed.bougacha at gmail.com>
wrote:
> On Fri, Feb 27, 2015 at 1:42 PM, Eric Christopher <echristo at gmail.com>
> wrote:
> >
> >
> > On Fri, Feb 27, 2015 at 1:38 PM Ahmed Bougacha <ahmed.bougacha at gmail.com
> >
> > wrote:
> >>
> >> On Thu, Feb 26, 2015 at 2:33 AM, Kristof Beyls
2009 Oct 08
5
sort (all columns of) a matrix
Dear R-Help Team,
I have been trying to sort (all columns of) a matrix:
> a<-matrix(a<-c(1,3,4,6,6,4,6,56,4,64,86,39,4,2),length(a),2)
> a
[,1] [,2]
[1,] 1 1
[2,] 3 3
[3,] 4 4
[4,] 6 6
[5,] 6 6
[6,] 4 4
[7,] 6 6
[8,] 56 56
[9,] 4 4
[10,] 64 64
[11,] 86 86
[12,] 39 39
[13,] 4 4
[14,] 2 2
>
I