Learning R

Beginning at the beginning: R inferno - nice pdf, probably helps if you are already a programmer. -------------------------------------------------------------------------------------- Youtube! apply, effectively removes the need for a double for loop. tapply expects vectors. ----------------------- This is wrong!: mean(2, -100, -4, 3, -230, 5) This is correct!: mean(c(2, -100, -4, 3, -230, 5))