This is my tutorial on how to get started with R for data analysis.
Part II introduces plotting with ggplot2 and a section on saving data.
Part III is about organising code into scripts and Sweave reports. I encourage the R novice to look at this part even if you believe that writing scripts is difficult and not for you.
Part V talks about interpreting linear models with the aid of more plots and simple simulations.
There should be at least one more part, and I might go back and rework the previous episodes as well.