On Jul 27, 2011, at 4:53 PM, Paul Menzel wrote:
Dear Bert,
Am Mittwoch, den 27.07.2011, 13:26 -0700 schrieb Bert Gunter:
Paul:
No such change is needed.
Well the fact is, that I as a beginner was looking for who I could
plot
normal functions, so one more example would have helped me.
You do not understand S3 methods.
That is probably true.
See ?plot.default and read about S3 methods (e.g. in the tutorial
Introduction to R or the Language manual).
Searching for »s3 m« in [1] did not give me a good explanation. I have
not yet read the language manual.
By trial and error I still suggest to add the following.
# Plot the graph of a function f(x) = x^3 with the points
connected by lines.
# If you want to plot the graph as a curve please look into
`curve()`.
y <- seq(1:5)
plot(y, y**3, type="l")
This would have helped me as a beginner.
I think that what Bert might have been trying to get you to do was to
type:
?plot.function # which is what you might once you do get a better
understanding S3 methods.
--
David Winsemius, MD
West Hartford, CT
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