Displaying 20 results from an estimated 300 matches similar to: "help needed! RMSE"
2011 Jun 30
2
Saving fExtremes estimates and k-block return level with confidence intervals.
I am estimating a large model by groups. How do you save the results and?returns 
the associated quantiles?
For this example I need a data frame 
n?? ?xi??????? mu????????beta 
1?? 0.1033614? 2.5389580 0.9092611
2? ?0.3401922? 0.5192882 1.5290615 
3?? 0.5130798? 0.5668308 1.2105666
I also want to apply gevrlevelPlot() for each "n" or group.
?
#Example
n <- c(1, 1, 1, 1, 1, 1, 2, 2, 2,
2012 Jun 20
2
lmomco in gev estimation
Hi guys,
I'm trying to use lmomco package. first I did the manual calculation on
what is the estimates scale and location parameter given L-CV=0.2, L1=1000
L-moments and k (shape parameter) =- 0.1. so what i get is:
location: 821.0445
scale:    260.7590
shape:    -0.1000
#I assign this as GEV vectors using vec2par
GEVpara2<-vec2par(c( 821.0445 , 260.7590 ,-0.1),'gev')
#then I
2013 Jul 17
2
error message in gev
 
Hi r-users,
 
I would like to use gev and my data (annual rainfall ) is as follows:
 
> head(dat,20)  A    B    C    D    E    F    G    H    I     J
1  45.1 41.5 58.5 50.1 46.0 49.1 37.7 49.1 59.8  54.0
2  50.3 39.8 49.4 56.4 49.4 48.8 42.1 49.8 49.4  58.3
3  41.7 39.3 44.6 39.1 35.7 41.5 40.8 40.8 38.5  45.6
4  50.7 33.9 48.4 28.2 35.5 39.1 61.4 17.0 30.7  38.3
5  39.3 30.6 46.9 23.8 25.8
2012 Feb 01
3
Crash in R using embedded.
Hi,
I'm new to R, and am trying to embed R into another application.
I'm calling gev.fit() from the ismev package, and it is crashing somewhere
inside it.
gdb is not catching it, and valgrind is not showing any memory corruption
issues.
I suspect it's memory corruption, because it doesn't crash in exactly the
same spot each time.
I'm running R 2.12.2 on a 64 bit linux (Ubuntu
2009 Nov 16
1
lmomco package and confidence limits?
Hello,
I am using the lmomco package (lmom.ub and pargev) to compute the GEV 
parameters (location, scale, and shape), which are used to estimate 
return values.  I was wondering how/if I can calculate upper and lower 
confidence (CI_u, CI_l) intervals for each return frequency using the 
GEV parameters to fill-in the table below?
Xi (location)   =  35.396
Alpha (scale) =  1.726
Kappa (shape) = 
2009 May 04
3
GEV para datos no estacionarios
Hola a todos,
Soy nuevo en R y estoy intentando modelizar una serie de datos no
estacionarios usand la distribucion Generalizada de Valores Extremos GEV.
¿Podriais indicarme como se modeliza una tendencia polinómica (cuadrática,
por ejemplo) en alguno de los 3 parámetros (situación, escala o forma)? He
encontrado documentación a cerca de modelización linear o exponencial, pero
no acabo de
2005 Jul 27
3
fitting extreme value distribution
hi,
  rgev function gives me random deviates and I have a data
set which I am fitting to an EVD,IS there a way I can plot
both observed and ideal evd on the same plot
thankyou
Rangesh
2010 Feb 22
1
lmom: plotting log Pearson Type III
Can anyone show me how to add a log Pearson type III plot using the
evdistq() command to an extreme value plot using the lmom package?
Attached sample code below...
 
Thanks in advance,
Dave
 
library(lmom)
# annual maximum daily streamflows Mackenzie River
mackenzieRiver = c(26600, 30300, 34000, 32000, 29200, 28300, 28600,
26400, 28300, 28800, 29000, 22100, 32900, 31800, 21600, 32100, 27000,
2012 Jan 04
1
KS and AD test for Generalized PAreto and Generalized Extreme value
Dear R helpers,
I need to use KS and AD test for Generalized Pareto and Generalized extreme value.
E.g. if I need to use KS for Weibull, I have teh syntax
ks.test(x.wei,"pweibull", shape=2,scale=1)
Similarly, for AD I use
ad.test(x, distr.fun, ...)
My problem is fir given data, I have estimated the parameters of GPD and GEV using lmom. But I am not able to find out the distribution
2006 Dec 06
3
R-Help
Respected Sir
I am a very new user of R. I want to ask a question about "the nortest
package". In this package how we can write the code of ad.test, cvm.test,
ks.test for other distributions like GEV, GPA etc.
I request you to please  guide to me.
Kind Regards
AMNA
-- 
AMINA SHAHZADI
Department of Statistics
GC University Lahore, Pakistan.
Email:
amnakhan493@gmail.com
2012 Aug 08
1
GEV distribution fitted by L-moment graph
Hi,
I have been having difficulties in finding packages/ codes that simplify
plotting of a GEV fitted to dataset (by L-moments) that would print out
graph comprising dataset versus gumbel reduced variate n return period at
the same. Anyone can help me on this? Thanks.
	[[alternative HTML version deleted]]
2004 Sep 22
5
block statistics with POSIX classes
I have a monthly price index series x, the related return series y = diff(log(x)) and a POSIXlt date-time variable dp. I would like to apply annual blocks to compute for example annual block maxima and mean of y.
When studying the POSIX classes, in the first stage of the learning curve, I computed the maximum drawdown of x:
> mdd <- maxdrawdown(x)
> max.dd <- mdd$maxdrawdown
> from
2007 Jan 14
2
ks.test not working?
Hi,
I am trying the following:
library(ismev)
library(evd)
fit <- gev.fit(x,show=FALSE)
ks.test(x,pgev,fit$mle[1],fit$mle[2],fit$mle[3])
but I am getting:
Warning message:
cannot compute correct p-values with ties in: ks.test(x, pgev,
fit$mle[1], fit$mle[2], fit$mle[3])
where x is:
 [1]  239   38    1   43   22    1    5    9   15    6    1    9  156
 25    3  100    6
 [18]    5  100  
2011 Oct 21
2
How to use gev.fit (package ismev) under box constraints?
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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
2007 Jun 15
1
Loop for test statistic
I would like to obtain the statistic of A2 for ycf between the value 0.0032
and 0.09, and I am using the following codes. 
while (0.0032 <ycf <0.09) {
A2 <- A2_GOFlaio(ycf, dist="GEV")[1]
print(A2)
}
Could anyone give me some advice as it does not work.
Many thanks.
-- 
View this message in context: http://www.nabble.com/Loop-for-test-statistic-tf3927249.html#a11137549
Sent
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 Jul 21
1
"lmomRFA" package: error bounds/confidence intervals
Dear List
   I?m using the ?lmomRFA? package to fit different distributions to my data
   sample. To calculate the error bounds I used:
regsimq(?)
and
sitequantbounds(?)
 
So my questions are:
Are error bounds and confidence intervals the same thing?
And: Does 
 
regsimq(?  boundprob = c(0.05, 0.95)) 
 
calculate the 90 or the 95% confidence interval?
If error bounds and confidence intervals are
2012 Oct 12
1
ks.test not working?
Hi,
I am performing GEV analysis on temperature/precipitation data and want to use the ks.boot function but I am unsure of how to implement it using the pgev distribution.
For example:
ks.test(data,pgev,shape,location,scale)
ks.boot(data,(distribution parameters?),alternative="pgev",nboots=1000)
Any advice? Apologies in advance if I have used the wrong email address.
Regards,
Louise
2013 Mar 18
1
helppp! security = user + public share
I'm getting killed this morning, since we did a Samba upgrade to one of our production servers this weekend and didn't expect this one.
I have one share that I need unauthenticated access to from a few named workstations.  Here's the config:
# Samba config file created using SWAT
# from UNKNOWN (x.x.x.x)
# Date: 2013/03/18 14:25:33
[global]
	encrypt passwords = No
	map to guest =