Dear all,
I ran into some issues that I've been trying to figure out for weeks but
with no success. So I'm looking for some advice here. I've the following
questions:
1. I want to write some S4 classes and methods and add them into a current
package that was written in S3. Is this possible? Can both S3 and S4 methods
exist in one package?
2. When I sourced my functions using "source", they work perfectly for
all my testing examples. But if I put them into a package, build, install and
load this package, then surprisingly, some of the same testing code reports an
error! But they are just the same functions except the fact that when I load the
package, the previously existing S3 methods will also be loaded. Is it possibly
because of some conflicts between S3 and S4 since when I source it, only S4
methods are loaded?
This has been really confusing to me, and I really hope I could find some
answers here. Many thanks in advance.
Wayne (Yanwei) Zhang
Statistical Research
CNA
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