January 2014
Beginner to intermediate
860 pages
20h 37m
Japanese
Content preview from Rクイックリファレンス 第2版
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10.1 R におけるオブジェクト指向プログラミングの概要
> series(my.TimesSeries)
[1] 1 2 3 4 5 6
setGeneric
への呼び出しは、既定のメソッドの古い
series
本体を、ジェネリック
関数として
series
を再定義しています。
> series
standardGeneric for "series" defined from package ".GlobalEnv"
function (object)
standardGeneric("series")
<environment: 0x19ac4f4>
Methods may be defined for arguments: object
Use showMethods("series") for currently available ones.
> showMethods("series")
Function: series (package .GlobalEnv)
object="ANY"
object="TimeSeries"
(inherited from: object="ANY")
次の例として、オブジェクトから周期を抽出するための「
period
」と呼ばれるジェ
ネリック関数を作り、
TimeSeries
オブジェクトで、関数
period.TimeSeries
を指定
しようと思います。ジェネリックメソッドは他のオブジェクトでも使えます。
> period <- function(object) ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.