我在两台机器和一个 linux 服务器之间遇到了不一致的结果,直到我意识到修复种子有不同的效果。我正在运行不同的R
所有版本中的所有版本,均高于 3.3.0
.以下是示例:
Linux 1
> set.seed(10); rnorm(1)
[1] -0.4463588
> version
_
platform x86_64-pc-linux-gnu
arch x86_64
os linux-gnu
system x86_64, linux-gnu
status
major 3
minor 3.0
year 2016
month 05
day 03
svn rev 70573
language R
version.string R version 3.3.0 (2016-05-03)
nickname Supposedly Educational
Linux 2
> set.seed(10); rnorm(1)
[1] 0.01874617
> version
_
platform x86_64-pc-linux-gnu
arch x86_64
os linux-gnu
system x86_64, linux-gnu
status
major 3
minor 4.2
year 2017
month 09
day 28
svn rev 73368
language R
version.string R version 3.4.2 (2017-09-28)
nickname Short Summer
Mac 操作系统
> set.seed(10); rnorm(1)
[1] 0.01874617
> version
_
platform x86_64-apple-darwin15.6.0
arch x86_64
os darwin15.6.0
system x86_64, darwin15.6.0
status
major 3
minor 4.3
year 2017
month 11
day 30
svn rev 73796
language R
version.string R version 3.4.3 (2017-11-30)
nickname Kite-Eating Tree
window
> set.seed(10); rnorm(1)
[1] 0.01874617
> version
_
platform x86_64-w64-mingw32
arch x86_64
os mingw32
system x86_64, mingw32
status
major 3
minor 4.1
year 2017
month 06
day 30
svn rev 72865
language R
version.string R version 3.4.1 (2017-06-30)
nickname Single Candle
Linux 从同一个种子生成不同的随机数,从而使在其上运行的脚本的结果无法完全重现(取决于重新运行它们的操作系统,结果是否一致)。这很烦人。
我不知道这里发生了什么。特别:
R
是否有问题?的版本或更多的东西? 编辑 源自@Jesse Tweedle 答案(在 Linux 1 中的新 session 中输出):
> set.seed(10); rnorm(1)
[1] -0.4463588
> set.seed(10); rnorm(1)
[1] -0.4463588
> set.seed(102); rnorm(1)
[1] 0.05752965
> set.seed(10, kind = "Mersenne-Twister"); rnorm(1)
[1] 0.01874617
> set.seed(10); rnorm(1)
[1] 0.01874617
> set.seed(102); rnorm(1)
[1] 0.1805229
最佳答案
来自文档:
Random docs :RNGversion can be used to set the random generators as they were in an earlier R version (for reproducibility).
所以在所有系统上试试这个:
set.seed(10, kind = "Mersenne-Twister", normal.kind = "Inversion"); rnorm(1)
[1] 0.01874617
关于r - R中相同的种子,不同的操作系统,不同的随机数,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/48626086/