I'm trying to practice statistics method using Rstudio. 1. Resources for study What I used resource is form here https://www.nypi.re.kr/archive/eps NYPI Youth and Children Data Archive Advancement ofYouth Policy National Youth Policy Institute will lead the way www.nypi.re.kr 2. Loading data in Rstudio It's pretty simply click 'Import Dataset' there are some taps From Test, Excel, Spss, SAS, Sat..