search for: normix

Displaying 8 results from an estimated 8 matches for "normix".

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2003 Apr 10
6
How to plot several graphs in a single 2-D figure?
Hi, R-listers I tried to plot several graphs in a sigle x-y coordinate settings, like the following: |(y) s | ****** s | ***** s | sssssssssssssssssss |_______________________________(x) where "*" and "s" denote two diffrent plots. However, when I used plot(data1); % data1 is the data points of "*"
2003 Nov 19
0
'nor1mix' for 1-dimensional normal mixture distributions
I have been authoring a very small R package on CRAN, named "normix" which implements an S3 class "norMix" has plot and print methods; further, E[X] and Var[X] methods, random number generation ("r") and density evaluation. It also provides the 16 "Marron-Wand densities" (known in the (1d) density estimation business). Erik J?rge...
2003 Nov 19
0
'nor1mix' for 1-dimensional normal mixture distributions
I have been authoring a very small R package on CRAN, named "normix" which implements an S3 class "norMix" has plot and print methods; further, E[X] and Var[X] methods, random number generation ("r") and density evaluation. It also provides the 16 "Marron-Wand densities" (known in the (1d) density estimation business). Erik J?rge...
2003 Jul 17
3
univariate normal mixtures
...here a function in R that can estimate the number of normal distributions k and the means `m_i' for the different normal distributions from a sample? Or evt. a function that can estimate the `m_i', when the number of distributions `k' is known? So far I only found a package, called `normix'. But at first sight it only provides methods to sample from such distributions and to estimate the densities; but not to fit such a distribution. Can someone indicate where I can find an elegant solution? Thank you in advance Joke Allemeersch Katholieke universiteit Leuven. Belgium.
2003 Apr 24
1
estimating number of clusters ("Null or more")
...subj :-) My data has too much various distribution families and for every particular experiment I need just to decide whether the data is "quite homogeneous" or it has two or more clusters. I've revisited the following libraries: amap, clust, cclust, mclust, multiv, normix, survey. And I didn't find any ready-to-use general purpose criterion for answering the question whether the data is "quite homogeneous" or has two or more clusters. Even for one dimension data. However, in "cclust" a "clustIndex" might be used as a raw...
2003 Jan 27
1
rmultinom() -- how \\ via own C code?
I've had a need for multinomial "random number generation" occasionally. And other people too. The following code is currently in the (very small ``not very high importance'') CRAN package normix --- which I will rename to "nor1mix" very seen because of a ``name registration'' problem I want to add "this" (well the functionality) to a standard package -- "mva" probably. The reason for my post is to ask about importance for C code (and a an offic...
2002 Aug 05
0
Re: [S] Multinomial
...gt; writes: Jacob> Could anybody please help: I simply want to generate Jacob> random samples from a multinomial distribution with Jacob> fixed n and given probability vector p. Jacob> How can I do this? I've recently written the following {for the R package "normix"}. The above is really a FAQ. I think I'd propose to adopt this (or an improvement of it) both for R and S-plus : ## This is based on rmultz2() from S-news by Alan Zaslavsky & Scott Chasalow ## {and adapted from the R package "combinat"}. ## Arg.names like rbinom();...
2011 Apr 04
1
Difference in mixture normals and one density
Hello, I am trying to find out if R can do the following: I have a mixture of normals say f = 0.2*Normal(2, 5) + 0.8*Normal(3,2) How do I find the difference in the densities at any particular point of f and at Normal(2,5)? -- Thanks, Jim. [[alternative HTML version deleted]]