Subsets with random sampling with replacement in R

是 否 +2 论坛币

k人 参与回答

经管之家送您一份

应届毕业生专属福利!

求职就业群

赵安豆老师微信：zhaoandou666

经管之家联合CDA

送您一个全额奖学金名额~ !

立即领取

感谢您参与论坛问题回答

经管之家送您两个论坛币！

+2 论坛币

I have a vector of 300 numbers (from 1 to 300). I want to create two subsets, i.e., model/training (200 numbers) and testing set (100 numbers) with replacement. I tried to use sample and subset but didn't got the results I want.

MWE:x=(1,2,3,.......300)x1 = (1,1,2,3,5,5,...........,300) (Consider it training set of 200 samples)x2 = (1,3,9,101,130,130,..........299)

Any suggestion please !!!!!

扫码加我 拉你入群

请注明：姓名-公司-职位

以便审核进群资格，未注明则拒绝

分享0 收藏0 回帖

关键词：replacement placement Sampling replace Subsets training testing numbers please create

You could create a set of random indices for the training set and then select all but those indices for the test set, like this:

data <- c(1,3,8,7,19,5,4,10,11,20)
i <- sample(1:length(data), 5)
training <- data[i]
test <- data[-i]
This will get five points for the training set and all the remaining points will go in the test set.