Quite right, David. I forgot to indicate that MASS needs of course
to be loaded. It's such a useful package that I usually have it
loaded.
Raymond:
When you ask for help with a function in an add-on package
you should indicate that package in your query.
-Peter Ehlers
David Winsemius wrote:
On Nov 20, 2009, at 1:47 PM, Peter Ehlers wrote:
Raymond Wong wrote:
This is probably simple, but I have a hard time finding the solution.
Any help greatly appreciated.
I would like to use the results of
fitdistr(z,densfun=dweibull,start=list(scale=1,shape=1)) for further
processing. How do I assign the values of scale and shape to b and a
without manually entering the numbers?
library(MASS)
fd <- fitdistr(z,densfun=dweibull,start=list(scale=1,shape=1))
str(fd)
fd$estimate
fd$estimate[1]
etc
Remember the ever useful str().
Agree! You cannot learn R without knowing to use str().
Could also get more self-documenting code with:
fd$estimate[c("scale", "shape")]
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