Excel pivot tables have been how I have reorganized data...up until now. These are just a couple of examples why R is superior to Excel for reorganizing data:################ Good riddance to pivot tables ############library(reshape2)library(plyr) ...
In a recent post, I asked for suggestions for introductory R computing books. In particular, I was looking for books that: Assume no prior knowledge of programming. Assume very little knowledge of statistics. For example, no regression. Are cheap, since they are for undergraduate students. Some of my cons aren’t really downsides as such. Rather, 
Over the past year, Revolution Analytics has sponsored a number of local R user groups, and we've been thrilled to see the enthusiasm with which R users are coming together. This year, we decided to expand and formalize our sponsorship program, so that any local R user group, whether just starting up or already established, can benefit from additional...
OK – has this ever happened to you? You are working with a team of collaborators all using a common dataset – maybe from an Agency, and LTER, or someone else’s data altogether. Each of you has some task – incorporating new data, running fancy models and putting the results back into the data for
Earlier I had a problem that required merging 3 years of trade data, with about 12 csv files per year. Merging all of these data sets with pairwise left joins using the R merge statement worked (especially after correcting some errors pointed out by Ha...
Reconstructing phylogenies is an interesting task, sadly one that often requires to navigate between a multitude of software. To add an unnecessary layer of complexity to the whole thing, most of these softwares speaks different languages, and requires the user to do endless conversions from fasta to phylip to nexus to whatever new format they
As the number of R users and contributed packages increases, activity on the R-help mailing list and the R tag on Stack Overflow also continues to rise. Users with the knowledge to help those asking questions naturally have limited time to ass...
As the number of R users and contributed packages increases, activity on the R-help mailing list and the R tag on Stack Overflow also continues to rise. Users with the knowledge to help those asking questions naturally have limited time to ass...
One of the features I feel that I don’t leverage enough, particularly for ad-hoc questions, is the clipboard feature in R. I know there are many ways to use it – as I have been exposed to a few – but the example below, even without context, should get you thinking about how awesome R 
As with the one-way case, testing the omnibus hypothesis via two-way ANOVA is simple process in R. This tutorial will explore how R can be used to perform a two-way ANOVA to test the difference between two (or more) group means. Tutorial FilesBefore we...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
