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the new method was
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the new method was
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\code{"myClass"}:
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\code{"myClass"}:
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 \code{f3.myClass <- function(x, ...) { ..... }}
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 \code{f3.myClass <- function(x, ...) { ..... }}
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 \code{setMethod("f3", "myClass", f.myClass)}
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 \code{setMethod("f3", "myClass", f3.myClass)}
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The reasons for defining both S3 and S4 methods are as follows:
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The reasons for defining both S3 and S4 methods are as follows:
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\enumerate{
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\enumerate{
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  \item An S4 method alone will not be seen if the S3 generic function
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  \item An S4 method alone will not be seen if the S3 generic function
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    is called directly.  However, primitive functions and operators
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    is called directly.  However, primitive functions and operators