Displaying 5 results from an estimated 5 matches for "riedwyl".
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riedel
2005 Dec 03
1
Fit Frechet Distribution
...ethod 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
2005 Sep 12
1
fit data with gammadistribution
hello
my data is
data2:2743 4678 21427 6194 10286 1505 12811 2161 6853 2625 14542 694
11491 14924 28640 17097 2136 5308 3477 91301 11488 3860 64114 14334
by calculating
shape<-(mean(data2))^2/var(data2)
scale<-var(data2)/mean(data2)
i get the idea what the parameters of the gammadistribution would be.
but if i try using the method mle() i get stock and i don't know, how to
2005 Sep 09
2
test for exponential,lognormal and gammadistribution
hello!
i don't want to test my sample data for normality, but exponential- lognormal-
or gammadistribution.
as i've learnt the anderson-darling-test in R is only for normality and i am
not supposed to use the kolmogorov-smirnov test of R for parameter estimates
from sample data, is that true?
can you help me, how to do this anyway!
thank you very much!
nadja
2005 Sep 06
2
fitting distributions with R
Dear all
I've got the dataset
data:2743;4678;21427;6194;10286;1505;12811;2161;6853;2625;14542;694;11491;
?? ?? ?? ?? ?? 14924;28640;17097;2136;5308;3477;91301;11488;3860;64114;14334
I know from other testing that it should be possible to fit the data with the
exponentialdistribution. I tried to get parameterestimates for the
exponentialdistribution with R, but as the values
of the parameter
2005 Sep 06
2
(no subject)
my problem actually arised with fitting the data to the weibulldistribution,
where it is hard to see, if the proposed parameterestimates make sense.
data1:2743;4678;21427;6194;10286;1505;12811;2161;6853;2625;14542;694;11491;
?? ?? ?? ?? ?? 14924;28640;17097;2136;5308;3477;91301;11488;3860;64114;14334
how am I supposed to know what starting values i have to take?
i get different