What is the difference between the functions apply , sapply , mapply , lapply , vapply , rapply , tapply , replicate , aggregate , by and correlates no R?
When and how to use each o...
I have a database here and I need to automatically check which are quantitative variables. My advisor says that I need to use sapply and the is.numeric function and create a code that returns a vector of true and false indicating w...
What is the difference between the functions apply , sapply , mapply , lapply , vapply , rapply , tapply , replicate , aggregate , by and correlates no R?
When and how to use each o...
I can figure out the maximum and minimum value of a data frame like this:
question2 <- data.frame (Month = c("January", "February", "March", "April", "May", "June"),
Day1 = c(0.73, 0.97, 0.63, 0.35, 0.81, 1.24),...