Jim Lemon wrote:
Yes, I realized that I had forgotten to require(plotrix) after I sent
the message. From your example, you might also want to look at the
diamondplot function, also in plotrix.
Jim,
thanks for the hint to diamondplot. It is much closer natively to what I
wanted to do, and
emorway wrote:
So I wanted to try a different equation of the general form a/(b+c*x^d)
US.nls.2-nls(US.final.values$ECe~(a/(b+c*US.final.values$WTD^d)),data=US.final.values,start=list(a=100.81,b=73.7299,c=0.0565,d=-6.043),trace=TRUE,algorithm=port)
but that ended with Convergence
Kavitha Venkatesan-2 wrote:
variable.df is a character string that contains the name of the data
frame that I want to do the following operations on:
variable.df - data.frame();
# I can do the above command using
assign( variable.df, data.frame() )
How can I perform the assignment
Hi,
Is eval always used in conjunction with parse? Based on other languages, I'd
expect the expression already to work without the use of parse(), but indeed it
doesn't, or at least not as intended. Just a newbie question..
Cheers!!
Albert-Jan
For an application in image processing -- using R for statistical purposes -- I
need to solve the following task:
Given n (e.g. n = 100 or 200) points in the unit square, more or less randomly
distributed. Find a rectangle of maximal area within the square that does not
contain any of these
Hi, All!
To calculate Levene's Test for Homogeneity of Variance I use R Commander,
and this is the output:
levene.test(Dataset$age, Dataset$sex)
Levene's Test for Homogeneity of Variance
Df F value Pr(F)
group 1 0.8739 0.3567
33
I am not sure what means Pr(F)? Can anyone
On 21 March 2010 13:13, Iurie Malai iurie.ma...@gmail.com wrote:
To calculate Levene's Test for Homogeneity of Variance I use R Commander,
and this is the output:
levene.test(Dataset$age, Dataset$sex)
Levene's Test for Homogeneity of Variance
Df F value Pr(F)
group 1 0.8739 0.3567
Dear Iurie,
Pr(F) is the p-value for the test of the null hypotheses that the
population variances are equal. This is the typical format for labelling a
p-value in R output.
I hope this helps,
John
John Fox
Senator William McMaster
Professor of Social
Matthew Giovanni matthewgiovanni at gmail.com writes:
Dear R and lme4 users-
I am trying to fit a mixed-effects model, with the glmer function in
lme4, to right-skewed, zero-inflated, non-normal data representing
understory grass and forb biomass (continuous) as a function of tree
Ben Bolker wrote:
3. zero-inflated data may not be particularly well-represented
by a Gamma distribution: if you actually have a significant number
of exactly-zero values, you may want to analyze your data in two
stages, first as a presence-absence problem and then as a conditional
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
On Behalf Of tj
Sent: Saturday, March 20, 2010 10:35 AM
To: r-help@r-project.org
Subject: Re: [R] EM algorithm in R
here is my program... Im trying to fit 1 component to 6 components in
can anyone suggest how can i do calculus
(e.g.limit,differentiation,integrate,mean value theorem,definite
integral,convergence,maxima minima of functions,checking continuity) using
R??
--
View this message in context:
http://n4.nabble.com/calculus-using-R-tp1676727p1676727.html
Sent from the R
Hi
I'm using Libsvm, I made a function to save models, confusion matrix of
different models
but when I want to use saved model, I can't
let suppose output of function is :
models=list(model1,model2,)
but how can I use these models? using predict(models[[1]],y) causes error
message:
Dear R-gurus..
How do I implement the following:
a) Overlay frequency(instead of density) with line of density plot, vertical
lines of confidence intervals and reference levels?
b) Control the breaks (using nint?), order of the panel, and the layout,
place units for each conditioning variable?
On Mar 21, 2010, at 11:26 AM, ATANU wrote:
can anyone suggest how can i do calculus
(e.g.limit,differentiation,integrate,mean value theorem,definite
integral,convergence,maxima minima of functions,checking continuity)
using
R??
?D
?integrate
?pmax
?pmin
package:RYacas
Continuity?
On Sun, 21 Mar 2010, Albert-Jan Roskam wrote:
Hi,
Is eval always used in conjunction with parse? Based on other languages, I'd
expect the expression already to work without the use of parse(), but indeed it
doesn't, or at least not as intended. Just a newbie question..
parse() turns a
Try this:
library(Ryacas) # http://ryacas.googlecode.com
Loading required package: XML
x - Sym(x)
h - Sym(h)
# limit
Limit(1/(1-x), x, Infinity)
[1] Starting Yacas!
expression(0)
# differentiation
deriv(x^3, x)
expression(3 * x^2)
# integration: indefinite and definite
Integrate(x^3,
Hi,
I would like to compare a column of data with a vector.
I have this data.frame for example;
x - data.frame(A = c(1:5), B = c(1,1,2,2,2))
Now I have a search vector:
search - c(1,3,5)
when I now try to get all the data-rows which have a 1, a 3, or a 5 in column A
and a 2 in column B,
I
Dieter Menne dieter.menne at menne-biomed.de writes:
Ben Bolker wrote:
3. zero-inflated data may not be particularly well-represented
by a Gamma distribution: if you actually have a significant number
of exactly-zero values, you may want to analyze your data in two
stages, first as a
-Original Message-
From: r-help-boun...@r-project.org
[mailto:r-help-boun...@r-project.org] On Behalf Of Albert-Jan Roskam
Sent: Sunday, March 21, 2010 2:25 AM
To: Mark Heckmann; jim holtman
Cc: r-help@r-project.org
Subject: Re: [R] using a condition given as string in subset
Martin Batholdy wrote:
Hi,
I would like to compare a column of data with a vector.
I have this data.frame for example;
x - data.frame(A = c(1:5), B = c(1,1,2,2,2))
Now I have a search vector:
search - c(1,3,5)
when I now try to get all the data-rows which have a 1, a 3, or a 5 in column A
On Mar 21, 2010, at 5:16 PM, Ben Bolker wrote:
Dieter Menne dieter.menne at menne-biomed.de writes:
Ben Bolker wrote:
3. zero-inflated data may not be particularly well-represented
by a Gamma distribution: if you actually have a significant number
of exactly-zero values, you may want to
On Sat, 2010-03-20 at 14:55 -0800, emorway wrote:
Hello,
Using this data:
http://n4.nabble.com/file/n1676330/US_Final_Values.txt US_Final_Values.txt
and the following code i got the image at the end of this message:
US.final.values-read.table(c:/tmp/US_Final_Values.txt,header=T,sep= )
thanks!
Now I have one more question;
How can I do the reverse?
when %in% is == (for two vectors of different lengths); what is the equivalent
to != ?
On 21.03.2010, at 22:33, Erik Iverson wrote:
Martin Batholdy wrote:
Hi,
I would like to compare a column of data with a vector.
I
Martin Batholdy wrote:
thanks!
Now I have one more question;
How can I do the reverse?
when %in% is == (for two vectors of different lengths); what is the equivalent
to != ?
a %in% b returns a logical vector, so
!a %in% b
returns its negation. See order of precedence in ?Syntax.
What's wrong with using grid.grabExpr?
p1 - xyplot(1:10 ~ 1:10)
g1 - grid.grabExpr(print(p1))
I can imagine there would be potential problems to do with the
plot-time aspect and layout calculations...
On 19 March 2010 21:51, baptiste auguie baptiste.aug...@googlemail.com wrote:
Dear list,
Hi-
I want to fit a model with crossed random effects and heteroskedastic
level-1 errors where inferences about fixed effects are of primary
interest. The dimension of the random effects is making the model
computationally prohibitive using lme() where I could model the
heteroskedasticity with
hi,
Is it possible to add special characters like the euro sign to a plot?
thanks!
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and
Hi Martin, here as example code that may help you to get what you want (once
you didn't specified were in the plot you want the symbol).
plot(1:10)
title(main= \u20ac, font = 5)
Ps.: This coding may differ between operational system, this one worked in a
Windows Vista 32 bits.
This works for all
Hi All,
I am currently working on an analysis which requires a call to an
external FORTRAN routine contained within a file called MCDS.EXE. This
file is usually called from within a WINDOWS program called DISTANCE. I
have some R script from the developers of the original software which
Hi All:
I am trying to move a model from Stata to R.
It is a linear regression model with about 90,000 indicator variables.
What is the best approach to follow in R?
- Roy
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing
On 03/21/2010 10:12 PM, Hans W Borchers wrote:
For an application in image processing -- using R for statistical purposes -- I
need to solve the following task:
Given n (e.g. n = 100 or 200) points in the unit square, more or less randomly
distributed. Find a rectangle of maximal area within
Alex Anderson wrote:
Hi All,
I am currently working on an analysis which requires a call to an
external FORTRAN routine contained within a file called MCDS.EXE. This
file is usually called from within a WINDOWS program called DISTANCE. I
have some R script from the developers of the
Just read the help page:
?%in%
%w/o% - function(x,y) x[!x %in% y] #-- x without y
(1:10) %w/o% c(3,7,12)
--
David.
On Mar 21, 2010, at 5:57 PM, Martin Batholdy wrote:
thanks!
Now I have one more question;
How can I do the reverse?
when %in% is == (for two vectors of different lengths);
Greetings R wizards.
I have the following problem using Emacs Speaks Statistics:
When trying to set a working directory, or when trying to read a file
that is in a directory that has the character á (note that it has a
spanish accent symbol: ´ ) R being ran from emacs tells me that the
directory
On Mar 21, 2010, at 5:16 PM, Ben Bolker wrote:
Dieter Menne dieter.menne at menne-biomed.de writes:
Ben Bolker wrote:
3. zero-inflated data may not be particularly well-represented
by a Gamma distribution: if you actually have a significant number
of exactly-zero values, you may want to
Hi
baptiste auguie wrote:
Dear list,
I'm trying to arrange various grid objects on a page using a
frameGrob. It works fine with basic grobs (textGrob, gTree, etc.), and
also with ggplot2 objects using the ggplotGrob() function. I am
however stuck with lattice. As far as I understand, lattice
Hans W Borchers hwborchers at googlemail.com writes:
For an application in image processing -- using R for statistical purposes --
I
need to solve the following task:
Given n (e.g. n = 100 or 200) points in the unit square, more or less randomly
distributed. Find a rectangle of maximal
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