丢弃 200 个随机健康实例
Discard 200 random healthy instances
丢弃 200 个随机健康实例。
我如何在 Rstudio 中实现它?
这是数据框:
https://www.kaggle.com/code/jamaltariqcheema/model-performance-and-comparison/data
我试过了,但出现错误。
kidney_disease$hd <- ifelse(test=kidney_disease$hd == 0, yes="Healthy", no="Unhealthy")
也许以下解决了问题。
使用 sample
随机选择行号,将默认值 "Healthy"
分配给新列 hd
,并将值 "Unhealthy"
分配给随机选择的行。
set.seed(2022) # Make results reproducible
i <- sample(nrow(kidney_disease), 200)
kidney_disease$hd <- "Healthy"
kidney_disease$hd[i] <- "Unhealthy"
丢弃 200 个随机健康实例。 我如何在 Rstudio 中实现它?
这是数据框:
https://www.kaggle.com/code/jamaltariqcheema/model-performance-and-comparison/data
我试过了,但出现错误。
kidney_disease$hd <- ifelse(test=kidney_disease$hd == 0, yes="Healthy", no="Unhealthy")
也许以下解决了问题。
使用 sample
随机选择行号,将默认值 "Healthy"
分配给新列 hd
,并将值 "Unhealthy"
分配给随机选择的行。
set.seed(2022) # Make results reproducible
i <- sample(nrow(kidney_disease), 200)
kidney_disease$hd <- "Healthy"
kidney_disease$hd[i] <- "Unhealthy"