dootr在动物园对象中变异 [英] dplyr mutate in zoo object

问题描述

我试图在 zoo 对象中应用 dplyr mutate 。但是，它产生一个错误：

I was trying to apply the dplyr mutate in zoo object. But, it generated an error:

Error in UseMethod("mutate") : 
  no applicable method for 'mutate' applied to an object of class "zoo". 

我googled，看到它还没有解决。最近的一个讨论是 here 。

I googled and saw that it has not been yet resolved. A recent discussion on this is here.

如果有任何人可以在这方面帮助我，我将不胜感激。

I would appreciate if any one could help me in this regard.

推荐答案

动物园有一个变换方法：

library(zoo)
z <- zoo(cbind(a = 1:3, b = 4:6))

transform(z, a = a + 1, c = a + b)

给：

  a b c
1 2 4 5
2 3 5 7
3 4 6 9

或使用以上的 z 给出相同的结果：

or using z from above, the following gives the same result:

library(magrittr)
z %>% transform(a = a + 1, c = a + b)

下次请提供示例代码，输入和预期输出。

Next time please provide sample code, inputs and expected outputs.

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