- 👋 Hi, I’m Metehan Güngör (@gungorMetehan)
- 📃 data-science machine-learning artificial-intelligence
- 📃 psychometrics educational-assessment item-response-theory classical-test-theory statistics factor-analysis measurement-invariance differential-item-functioning R Python SPSS TAP
for (i in nrow(df)) {
if (df$total_contributions[i] < df$total_contributions[i-1]) {
print(paste(df$year[i], ": you should work harder"))
} else {
print(paste(df$year[i], ": you are doing well"))
}
}








