05 2021 档案

R(week 13_2)
摘要：install.packages('nycflights13') library(dplyr) library(utils) library(nycflights13) head(flights) flights_Month1_Day1 <- filter(flights, month == 1, 阅读全文
posted @ 2021-05-24 18:06 sinEagle 阅读(47) 评论(0) 推荐(0)
R(week 13)
摘要：d <- sample(1:10, 7) d sort(d, decreasing = TRUE) tmpIndex <- order(d) d[tmpIndex] tmpIndex <- order(airquality$Wind) tmpIndex scoreSheet1 <- data.fra 阅读全文
posted @ 2021-05-24 17:44 sinEagle 阅读(50) 评论(0) 推荐(0)
R(tmp)
摘要：stata <- data.frame(state.name, state.abb, state.area) stata volcano heatmap(volcano) Titanic cars women car data(Chile, package = "car") x <- c(1, 2, 阅读全文
posted @ 2021-05-23 23:00 sinEagle 阅读(219) 评论(0) 推荐(0)
R(week 12)
摘要：set.seed(125) myMat <- matrix(rpois(20, 3), nrow = 4) myMat dim(myMat) apply(myMat, 2, max) apply(myMat, 1, min) apply(myMat, 2, range) airquality spl 阅读全文
posted @ 2021-05-17 18:01 sinEagle 阅读(60) 评论(0) 推荐(0)