(USING R) So I imported a data set by using
xcars <- read.csv(file.choose())
and then I chose my data set which was originally an excel file. So, I have a column named dist (short for displacement) and I want to choose the first 25 entries underneath that column and then plot it on a histogram, so I attempted the following.
carsUpTo25 <- xcars(1:25,)
hist(carsUpTo25$dist)
Of course this didn't work. However, any help on how I would do this would be helpful.
答案 0 :(得分:1)
试试这个 -
hist(xcars[,dist[1:10]])