Displaying 20 results from an estimated 400 matches similar to: "finite mixture model (2-component gaussian): plotting component gaussian components?"
2005 Oct 22
0
package mclust: cdens, EMclust?
Dear Knowledgeable R Community Members,
Please excuse my ignorance -- I apologize in advance
if this is an easy question, but I am a bit stumped
and could use a little guidance regarding parameters
in 2 functions in the "mclust" package.
--------------------
PROBLEM DESCRIPTION
--------------------
I have a finite mixture modeling problem -- for
example, a 2-component gaussian
2006 Jul 20
2
function names in a vector used by for (){} character problem ?
Hi there,
i´m have vector of kernels. just like:
kernels = c('gauss','epan','rectangular')
i know there are density.default$kernels, but thats not my question
here. my own kernel functions are running and working.
my problem is the following is not working:
dev.off()
par(mfrow=c(3,3))
for(i in 1:length(bw))
{
for(j in 1:length(kernels))
{
2008 Feb 17
1
Probable bug in "An Introduction to R" (PR#10777)
Both the document and R itself are at 2.6.2 (2008-02-08). When I run in
the Windows R console the command
lines(density(eruptions, bw=0.1))
found in ? 8.2, I get:
Error in plot.xy(xy.coords(x, y), type = type, ...) :
plot.new has not been called yet
Regards,
Olivier Lefevre
2017 Oct 09
0
example of geom_contour() with function argument
> On Oct 9, 2017, at 6:03 AM, Big Floppy Dog <bigfloppydog at gmail.com> wrote:
>
> Hello Ulrik,
>
> I apologize, but I can not see how to provide a pdf in place of the density
> function which calculates a KDE (that is, something from the dataset in the
> example). Can you please point to the specific example that might help?
>
> Here is what I get:
>
>
2006 Aug 25
2
plot question
Hi everyone,
I have what may appear to be a newbie question, but I have looked
everywhere I can think to look and I cannot find an answer. On page 35
of "An Introduction to R" the following command appears:
plot(ecdf(eruptions), do.points=FALSE, verticals=TRUE). What is the
do.points argument? I know what it does (suppresses printing of the
points) but where can I find help on it?
2017 Oct 09
3
example of geom_contour() with function argument
Hi,
This is not a HW problem, sadly: I was last in a classroom 30 years ago,
and can no longer run off to the instructor :-(
I apologize but I cut and paste the wrong snippet earlier and made a typo
in doing so, but the result is the same with the more appropriate snippet.
require(mvtnorm)
require(ggplot2)
set.seed(1234)
xx <- data.frame(rmvt(100, df = c(13, 13)))
v <- ggplot(data = xx,
2014 Jan 19
2
stat_density2d de ggplot2
Hola comunidad,
tengo el siguiente problema con la funcion stat_density2d (estimacion de
densidad 2d.) del paquete ggplot2
stat_density2d (mapping = NULL, data = NULL, geom = "density2d", position
= "identity", na.rm = FALSE, contour = TRUE, n = 100, ...)
de esta función requiero ver el cálculo númerico de la estimación de la
densidad,
cuento con el siguiente codigo y
2017 Oct 09
0
example of geom_contour() with function argument
library(mvtnorm) # you were misusing "require"... only use require if
you plan to
library(ggplot2) # test the return value and fail gracefully when the
package is missing
set.seed( 1234 )
xx <- data.frame( rmvt( 100, df = c( 13, 13 ) ) )
xx2 <- expand.grid( X1 = seq( -5, 5, 0.1 ) # all combinations... could
be used to fill a matrix
, X2 = seq( -5, 5, 0.1 )
2007 Dec 12
2
problem applying a conditional formula to each element of a matrix
I'm applying a function (Cov.f) defined below to each element of a
distance matrix. When I run the code below, I get a warning message
(below) and elements of returned matrix [2,3] and [3,2] are not zero
as I would expect. Clearly, there is an error... What am I doing
wrong? Thanks. --Dale
Warning message:
In if (h <= phi) { :
the condition has length > 1 and only the first element
2017 Oct 09
2
example of geom_contour() with function argument
Hello Ulrik,
I apologize, but I can not see how to provide a pdf in place of the density
function which calculates a KDE (that is, something from the dataset in the
example). Can you please point to the specific example that might help?
Here is what I get:
require(mvtnorm)
require(ggplot2)
set.seed(1234)
xx <- data.frame(rmvt(100, df = c(13, 13)))
v <- ggplot(faithfuld, aes(waiting,
2003 Nov 19
1
size of graphics device
Dear all,
In many cases, I need a plotting region much bigger than the screen (e.g. for maps or for graphs with many labels).
A. MS-Windows
if I try
windows(width=25, height=25, rescale="fixed")
it seems to be OK (a screen with scrollbars, exactly what I need)
but if I try then
plot(faithful$eruptions, faithful$waiting)
I receive
Error in plot.new() : Outer margins too large
2002 May 19
3
How to shade part of a density plot
I'm trying to shade part of a density plot. The code I'm trying (using
the Old Faithful data as an example) is something like this:
# The Old Faithful geyser data
data(faithful)
d <- density(faithful$eruptions, bw = "sj")
plot(d)
polygon(d[d$x>4], col = "wheat")
I expected that the part of the curve to the right of 4 on the x axis
should be shaded, but nothing
2005 Mar 07
3
R crashes using the em function of package mclust (PR#7719)
Hi,
I got the same problem like
http://tolstoy.newcastle.edu.au/R/devel/04/11/1204.html
R crashes when I use the em function from the mclust package on
univariate data and on a special case on bivariate data (when the matrix
is not provided as written in the manual).
It seems as if the problem is the format of the data to be analyzed.
Operating System: Windows XP (SP2)
R version: R-2.0.1
The
2013 Mar 15
3
advice on module organization
Hi Folks,
Like to get some advice on module organization. I have a system that has a
few different components. One or more components can be installed on a
host. The hosts also have a "type" dimension. This "type" dimension could
(should) ideally be used to configure the system (fill in a bunch of
variables). Problem is, I''m not sure how the best way to do
2007 May 25
1
email the silly fuckers instead.
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But thanks for drawing my attention to it anyway. These
2007 Mar 07
2
Power calculation for detecting linear trend
Dear people,
I've a problem in doing a power calculation. In Fryer and Nicholson
(1993), ICES J. mar. Sci. 50: 161-168 page 164 an example is given with
the following characteristics
T=5, points in time
R=5, replicates
Var.within=0.1
q=10, a 10% increase per year
The degrees of freedom for the test are calculated as Vl=T*R-2=23 and
the non-centrality parameter Dl=4.54.
Using this they get a
2013 Mar 19
2
Cumulative Frequency Graph
Hi,
I am trying to create a Cumulative Frequency graph and I am using the
following example:
http://www.r-tutor.com/elementary-statistics/quantitative-data/cumulative-frequency-graph
When I plot this data, how do I put in "real values" on the x-axis, rather
than the values that
are used for the breaks
Thanks
--
Shane
[[alternative HTML version deleted]]
2008 Oct 20
1
Mclust problem with mclust1Dplot: Error in to - from : non-numeric argument to binary operator
Dear list members,
I am using Mclust in order to deconvolute a distribution that I
believe is a sum of two gaussians.
First I can make a model:
> my.data.model = Mclust(my.data, modelNames=c("E"), warn=T, G=1:3)
But then, when I try to plot the result, I get the following error:
> mclust1Dplot(my.data.model, parameters = my.data.model$parameters, what = "density")
2009 Oct 08
3
foreach loop - rejection method
Hi Everybody,
Thanks in advance for your help.
This is my first time using the foreach statement and I cant get it to work
properly so here is what i have
test<-function(){
repeat {
cand2[l-1]<-rinvgamma(1,phi,lambda[l-1])
q2<-dinvgamma(cand2[l-1],phi,lambda[l-1])
p2<-cand2[l-1]^-1.5*exp(-y[l]^2/(2*cand2[l-1]))*exp(-((log(cand2[l-1])-mu_t_cand[l-1])^2)/2*sigmasq)
2011 Sep 04
2
mclust: modelName="E" vs modelName="V"
Hi,
I'm trying to use the library mclust for gaussian mixture on a numeric
vector. The function Mclust(data,G=3) is working fine but the fitting is not
optimal and is using modelNames="E". When I'm trying
Mclust(data,G=3,modelName="V") I have the following message:
Error in if (Sumry$G > 1) ans[c(orderedNames, "z")] else ans[orderedNames] :
argument is