I thought this text was pretty useful:
https://www.amazon.com/Introduction-Scientific-Programming-Simulation-Chapman/dp/1420068725
--
David
On 10/25/19 2:30 AM, basiru shehu wrote:
I am Basiru Shehu by name, wishing to conduct my research base on the
multivariate Behrems Fisher problems,
I am Basiru Shehu by name, wishing to conduct my research base on the
multivariate Behrems Fisher problems, please I need your help with a manual
that I can use to analyse the data using R. Thanks so much.
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Dear Sir/Ma,
I Adelabu.A.A, one of the R-users from Nigeria. I have a data-set of claims
paid, premium for individual life-insurance policy holder but not in triangle
form. how can i running stochastics chainladder in r on it.
please help
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On 05/28/2013 12:22 AM, Adelabu Ahmmed wrote:
Dear Sir/Ma,
I Adelabu.A.A, one of the R-users from Nigeria. I have a data-set of claims
paid, premium for individual life-insurance policy holder but not in triangle
form. how can i running stochastics chainladder in r on it.
please help
Dear Sir/Ma,
I Adelabu.A.A, one of the R-users from Nigeria. When am running a coxph command
the below error was generated, and have try some idea but not going through.
kindly please assist:
cox1 - coxph(Surv(tmonth,status) ~ sex + age + marital + sumassure, X)
Warning message:
In
Looks like sumassure is treated as categorical. This sort of thing is usually a
data error; it happens if one of the values can not be converted to numeric, O
instead of 0, comma instead of period, etc.
Check summary(X), or, to investigate more specifically, things like
x - X$sumassure
Good-day Sir,
I am R.Language users but am try to estimate parameter of beta distribution
particular dataset but give this error, which is not clear to me: (Initial
value in vmmin is not finite)
beta.fit - fitdistr(data,densfun=dbeta,shape1=value , shape2=value)
kindly assist.
expecting
You're not giving people much to work with. I googled the error, and it seems
to come from the call to optim and has likely to do with bad starting
parameters.
That said, the documentation of fitdistr doesn't suggest it even supports
dbeta, there is only a beta mentioned.
On 22.01.2013, at
Hello,
You are calling the function in a wrong way. In the case of a beta fit,
densfun should be the quoted string beta and the initial parameter
values are elements of a named list. Like this:
library(MASS)
x - rbeta(1000, shape1 = 2, shape2 = 0.5)
fitdistr(x, densfun = beta, start =
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