


# classnote 1
# date: 20250220
# install R and Rstudio.
# 12.4 <https://rforhr.com/setwd.html#setwd>
# setwd
# import
# read_csv
# 13 <https://rforhr.com/read.html#read>
# df <- read_csv("path/file.csv")
# dataframe 資料框
https://rforhr.com/write.html#initialsteps_write
# Set your working directory
setwd("H:/RWorkshop")
# Find your current working directory
getwd()
https://rforhr.com/setwd.html#getwd_setwd
https://rforhr.com/setwd.html#setwd Chapter 12 Setting a Working Directory 設定工作目錄 setwd
https://rforhr.com/read.html#read Chapter 13 Reading Data into R
https://rforhr.com/install.html#installRStudio 第九章 安裝R&RStudio


