Demo entry 6641356

R

   

Submitted by anonymous on Sep 18, 2017 at 07:05
Language: RConsole. Code size: 176 Bytes.

library(MASS)                            #用‘library’加载数据包
attach(geyser)                           #关联到数据集geyser
geyser[waiting<70,]                      #对第一个变量添加条件,第二个变量无条件

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