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每天学习一点点R
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R语言导入csv数据后，所有列变成一列怎么办？
R语言导入csv数据：DATARET = read.csv2("C:\\Users\\Administrator\\Desktop\\data1.csv",encoding = "uft-8")出现问题如下：解决方法：DATARET = read.csv2("C:\\Users\\Administrator\\Desktop\\data1.csv",encoding = "uft-8",sep = ",")原创 2020-05-25 21:13:34 · 11197 阅读 · 0 评论 -
R语言报错：Error in install.packages : ERROR: failed to lock directory ‘E:\R itself\R-3.6.3\library’
R语言报错：package ‘sp’ successfully unpacked and MD5 sums checkedError in install.packages : ERROR: failed to lock directory ‘E:\R itself\R-3.6.3\library’ for modifyingTry removing ‘E:\R itself\R-3.6.3...原创 2020-04-23 16:03:36 · 4656 阅读 · 0 评论 -
R包：nCov2019的安装下载
该R包是余光创博士在Github上发布了名为nCoV2019的R语言包，可以快速获取本次疫情相关统计数据。# R语言实时检索全球全国全省疫情信息并实现可视化。# 这个包不是存在CRAN，而是存在github，需要使用remotes包的install_github()指令安装。# 首先安装remotes包，如果之前没有安装的话。install.packages("remotes")rem...原创 2020-04-22 16:53:42 · 3861 阅读 · 0 评论 -
R语言入门学习笔记5
xts功能初探library(zoo)library(xts)date=c("2020-01-01","2020-02-01","2020-03-01","2020-04-01")patientID=c(1,2,3,4)age=c(24,34,28,52)diabetes=c("Type1","Type2","Type1","Type1")status=c("Poor","Impro...原创 2020-04-22 15:47:32 · 219 阅读 · 0 评论 -
R语言入门学习笔记4
# 1. Matrix Algebraset.seed(123)A=matrix(sample(100,15),nrow = 5,ncol = 3)set.seed(234)B=matrix(sample(100,15),nrow = 5,ncol = 3)set.seed(321)X=matrix(sample(100,4),nrow = 2,ncol = 2)set.seed(2...转载 2020-04-21 00:04:04 · 320 阅读 · 0 评论 -
R语言入门学习笔记3
# Understanding the Dataset# 1.1 Vectora=c(1,2,5,3,6,-2,4)b=c("one","two","three")c=c(TRUE,TRUE,TRUE,FALSE,TRUE,FALSE)# 1.2 Matrixx=matrix(1:20,nrow = 5,ncol = 4,byrow = TRUE) # 以行为顺序填充xy=ma...转载 2020-04-20 21:23:02 · 233 阅读 · 0 评论 -
R语言入门学习笔记2
R语言清屏： Ctrl + L R语言清除变量： rm(list = ls(all = TRUE)) R语言清除某个变量: rm(object)原创 2020-04-19 15:40:20 · 231 阅读 · 0 评论 -
R语言入门学习笔记1
# install packagesinstall.packages('ggplot2')library(ggplot2)# 查看安装了哪些包colnames(installed.packages())# create a vectorv=c(1,4,4,3,2,2,3) # return certain elementsv[c(2,3,4)] # the result is...转载 2020-04-19 15:31:17 · 214 阅读 · 0 评论