Doing a search on:
weibull and "probability plot" ,,,,along with... r-help
in Google produced this reply which I think gives a worked example
that fits some of your hopes.
http://tolstoy.newcastle.edu.au/R/help/03b/1714.html
I am not sure what the B<N>'s are however. If they are quantiles. I am
not sure how meaningful a 95th quantile estimate would be for a sample
with only 6 instances.
--
David Winsemius
On Sep 30, 2008, at 7:24 AM, Hoeks, Luis wrote:
Hello r-project team,
I am new (test) user of R and I need some help. Sorry to wrote in
German before, I am just a newbee to this mailing list. I would like
to calculate and plot a Weibull distribution (Weibull best-fit line,
accuracy curves left and right beside the best-fit line) for a
simple set of data points. I need the shape and the scale parameter
for the best-fit and values like B5, B10, B50, B90, B95. Usually I
have 6-20 data points, f.e. force [N] from from a tensile test. I
was thinking that for this kind of task there are ready-to-go R-
progams/scripts or maby a small how-to that guides me through this
subject.
Any help is very much appreciated!
Regards
Luis
-----Ursprüngliche Nachricht-----
Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
project.org] Im Auftrag von Hoeks, Luis
Gesendet: Dienstag, 30. September 2008 11:23
An: r-help@r-project.org
Betreff: [R] Weibull Verteilung
Hallo r-Projekt Team,
ich bin Anfänger in R und könnte ein wenig Hilfe gebrauchen. Ich
möchte eine Weibullverteilung (Weibullgerade und Genauigkeitskurven)
berechnen und plotten. Außerdem benötige ich den Formfaktor, den
Skalierungsfaktor und Werte wie B5, B10, B50, B90, B95. In der Regel
habe ich 6-20 Datenpunkte, z.B. aus Bruchlastversuchen. Ich kann mir
Vorstellen, dass es dafür schon fertige Scripte oder How-Tos
existieren, habe aber beim googeln nichts gefunden.
Wäre nett, wenn mir jemand hier einen Anstoß geben könnte.
Gruß
Luis
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