Displaying 20 results from an estimated 700 matches similar to: "Three Parameter FRECHET Distribution"
2005 Dec 03
1
Fit Frechet Distribution
hello everybody
i want to use the maximum likelihood method to estimate FRECHET parameters of
my sample data.
Should it work with fitdistr in the package MASS?
I only find how to do it for GEV, Gumbel, and almost all other distributions,
but FRECHET?
I would be very happy if somebody can tell me how to do fit the FRECHET
distribution!
Thanks
Nadja Riedwyl
2010 Aug 28
1
star models
Hi,
I am traying to implement an STAR model, but I have some problems.
I am following the instruction of the model, that they are in:
http://bm2.genes.nig.ac.jp/RGM2/R_current/library/tsDyn/man/star.html
that they are from:
http://bm2.genes.nig.ac.jp/RGM2/pkg.php?p=tsDyn
The model is:
star(x, m=2, noRegimes, d = 1, steps = d, series, rob = FALSE, mTh,
thDelay, thVar, sig=0.05, trace=TRUE,
2006 Dec 14
1
Fit Frechet Distribution
Hi everyone,
is there a function to fit a frechet distribution? The only thing I
found is gev.fit from ismev which fits a generalized extreme value
distribution (if shape>1 => Frechet) . Is there a function to only fit
a frechet?
Thank you
Benjamin
2009 Mar 19
1
Generalized Extreme Value Distribution (LMOM package) and Frechet Distribution
Dear R helpers
I have some data and through some other software, it is understood that I can fit the Frechet Distribution to it. However, I need to fit the distribution using R code only.
I have searched many R packages and one R helper has suggested some sites too, but unfortunately parameters couldn't be estimated.
Using LMOM package, I know how to estimate the parameters of Generalized
2009 Dec 05
1
Forest Plot
Hi All,
I want to produce a similar "Forest Plot" as it is on the following link,
but my data would be having only two columns (one for "Estimate" and other
for "Std. Dev"). Can anyone suggest some function() {Package} which can take
such file as an input and give following forest plot:
2009 Jul 09
9
Population pyramids
Hi, I hope somebody can help me with this issue: I am doing population pyramids using the barplot command, so in the left side I have male age structure and in the right side the female age structure. To plot the male age structure I put the data in negative numbers. Now, I want to change the sign in the bar plot in such way that I have no-sign numbers, both in left and right side of the graph. I
2006 Jun 19
2
frechet distance
Hi, is there any package (or source code snippet) that will evaluate the
Frechet distance for curves represented as sets of points?
Searching around only threw up references to a Frechet distribution.
Thanks,
-------------------------------------------------------------------
Rajarshi Guha <rxg218 at psu.edu> <http://jijo.cjb.net>
GPG Fingerprint: 0CCA 8EE2 2EEB 25E2 AB04 06F7 1BB9
2008 Dec 19
4
Akaike weight in R
Odette
> Wondering how can I generate "Akaike weight" with R? I know the description,
> but is there any function to generate by R on the web-site or R library?
> I am using GLM or GLMM (family=binomial), so would be appreciated if you
> help me.
You could have a look at this.
http://bm2.genes.nig.ac.jp/RGM2/R_current/library/aod/man/summary.aic.html
Which is in the OAD
2008 Dec 18
1
Random Number Generation using (Generalized) Extreme Value distribution and Pareto distribution
Hi R helpers,
Is there any function in R, which generates random numbers in case of
(1) Generalized Extreme Value distribution and
(2) Generalized PAreto distribution for the respective given set of parameters?
Regards
Maithili
2008 Oct 14
1
Advice on Computer Specifications
Hello
I'm running into a variety of limitations with my computer complaining that
it doesn't have sufficient memory. It is a Dell Latitude D630 Duo Core
CPU T7700 @ 2.40 GHz, with 3.50 GB RAM.
I'm working with relatively large dataframes
> dim(AllYears)
returns 4071840 records with 13variables
sometimes this complains that it can not allocate vectors of 16.0 Mb and
will
2009 Dec 06
3
estimate inverse gaussian in R
I have a one-variable data set in R.
The plot of histogram of my numerical variable suggests an inverse
gaussian distribution.
How can I obtain best estimation for the two parameters of inverse
gaussian based on my data?
Thanks.
--
View this message in context: http://n4.nabble.com/estimate-inverse-gaussian-in-R-tp949692p949692.html
Sent from the R help mailing list archive at Nabble.com.
2009 Mar 26
0
(Interpretation) VGAM - FRECHET 3 parameters by maximum likelihood estimation for
Dear R Helpers
This is the R code (which I have slightly changed) I got in VGAM package for estimating the parameters of FRECHET.
_________________________________________________________________
y = rfrechet(n <- 100, shape=exp(exp(0))) # (A)
fit3 = vglm(y ~ 1, frechet3(ilocation=0), trace=TRUE, maxit=155) # (B)
coef(fit3, matrix=TRUE) # (C)
2008 Dec 07
2
concordance correlation coefficient using R
Hi.
I have data which i would want to assess the degree of agreement
between two assays, e.g., to evaluate reproducibility or for
inter-rater reliability. I have used the Pearson product-moment
correlation coefficient. It looks good ranginging between 0.90 to
0.998. Though this looks good. I am told the Concordance correlation
coefficient will give a better picture of how reproducible the assay
2009 Aug 27
2
Comparing and adding two data series
Dear R helpers
I have two series A and B as given below -
A <- c(2, 2, 1, 3, 7, 3, 3, 1, 14, 7, 31)
B <- c(0.0728,0.9538,4.0140,0.0020,2.5593,0.1620,2.513,0.3798, .0033,0.2282, 0.1614)
I need to calculate the total in dataset B corresponding to the numbers in dataset A i.e. for no 1 in A, I need the total as 4.0140+0.3798 (as 1 is repeated twice)
for no 2, I need the total as
2008 Mar 13
1
how to generate bar charts with the standard deviation
Hi,
I have the two vectors mean and sd of individual columns, but I am unsure
how to generate bar charts with the standard deviation, even after looking
the help of barplot and barplot.2.
[[alternative HTML version deleted]]
2009 Dec 04
2
writing 'output.csv' file
Dear R helpers
Suppose
M <- c(1:10) # length(M) = 10
N <- c(25:50) # length(N) = 26
I wish to have an outut file giving M and N. So I have tried
write.csv(data.frame(M, N), 'output.csv', row.names = FALSE)
but I get the following error message
Error in data.frame(M, N) :
arguments imply differing number of rows: 10, 26
How do I modify my write.csv
2009 Aug 27
2
Fw: PROBLEM - - COMPARING AND COMBINING two DATASETS
Dear Sirs,
?
At the outset I sincerely apologize for reproducing my query to you. I also thank all of you for the solution you had provided. It has worked on the actual data I am working with.
?
However, there is this peculiar problem which I had realized only after I had obtained my results.
?
e.g. in the example I had attached
?
A?<-?c(2, 2, 1, 3, 7, 3, 3, 1,?14, 7, 31)
B?<-
2009 Mar 16
1
Fw: Fitting GUMBEL Distribution - CDF function and P P Plot
Dera R Helpers,
I am re-posting my query.
Please guide me.
Maithili
--- On Fri, 3/13/09, Maithili Shiva <maithili_shiva at yahoo.com> wrote:
I am trying to fit the Gumbel distribution to a data. I am
using lmom package. I am getting problem in Cumulative
Distribution Function of Gumbel distribution as I am getting
it as a series of 0's and 1's thereby affecting the
P P
2008 Dec 15
1
Movement within a circle
Dear list,
?
I am trying to program semi-random movement within a circle, with no particles leaving the circle. I would like them to bounce back when they come to close to the wall, but?I don't seem to be able to get this right. ?Would somebody?be able to?give me a hint ? This is my code so far, the particle starts at some point and moves towards the wall, but I don't get the
2009 Dec 01
2
Calculation of Central Moments
Dear R helpers
If for a given data, I need to calculate Mean, Standard Deviation, Mode, Median, Skewness, Kurtosis, is there any package in R, which will calculate these moments?
Individually I can calculate these, but if there is any function which will calculate these at a stretch, please let me know.
Maithili
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