-5
setwd("C:/DSI_Data_HW3")
beach <- read.csv("HW3_Beachtown.csv")
head(beach, 46)
str(beach)
table(beach$SPEOPLE)
summary(beach)
beach_z <- as.data.frame(lapply(beach, scale))
colMeans(x,na.rm = TRUE)中的错误:'x'必须是数字,在这种情况下应该怎么做?
您无法缩放分类变量... – Roland