Publications by R on The broken bridge between biologists and statisticians
From ”for()” loops to the ”split-apply-combine” paradigm for column-wise tasks: the transition for a dinosaur
I have been involved with data crunching for 30 years, and, due to my age, I see myself as a dinosaur within the R-users community. I must admit, I’m rather slow to incorporate new paradigms in my programming workflow … I’m pretty busy and the time I save today is often more important than the time I could save in the future, by picking up ...
6591 sym R (5677 sym/5 pcs) 2 img
From ”for()” loops to the ”split-apply-combine” paradigm for column-wise tasks: the transition for a dinosaur
I have been involved with data crunching for 30 years, and, due to my age, I see myself as a dinosaur within the R-users community. I must admit, I’m rather slow to incorporate new paradigms in my programming workflow … I’m pretty busy and the time I save today is often more important than the time I could save in the future, by picking up ...
5947 sym R (3812 sym/3 pcs) 2 img
General code to fit ANOVA models with JAGS and ‘rjags’
One of the reasons why I like BUGS and all related dialects has been put nicely in a very good book, i.e. “Introduction to WinBUGS for ecologists” (Kery, 2010); at page 11, the author says: “WinBUGS helps free the modeler in you”. Ultimately, that statement is true: when I have fully understood a model with all its components (and thus I ...
12393 sym R (8600 sym/9 pcs)
General code to fit ANOVA models with JAGS and ‘rjags’
One of the reasons why I like BUGS and all related dialects has been put nicely in a very good book, i.e. “Introduction to WinBUGS for ecologists” (Kery, 2010); at page 11, the author says: “WinBUGS helps free the modeler in you”. Ultimately, that statement is true: when I have fully understood a model with all its components (and thus I ...
12393 sym R (8600 sym/9 pcs)
lmDiallel: a new R package to fit diallel models. The Hayman’s model (type 2)
This posts follows two other previously published posts, where we presented our new ‘lmDiallel’ package (see here) and showed how we can use it to fit the Hayman’s model type 1, as proposed in Hayman (1954) (see here). In this post, we will give a further example relating to another very widespread model from the same author, the Hayman’s...
6847 sym R (93293 sym/6 pcs)
lmDiallel: a new R package to fit diallel models. The Hayman’s model (type 2)
This posts follows two other previously published posts, where we presented our new ‘lmDiallel’ package (see here) and showed how we can use it to fit the Hayman’s model type 1, as proposed in Hayman (1954) (see here). In this post, we will give a further example relating to another very widespread model from the same author, the Hayman’s...
8131 sym R (3958 sym/6 pcs)
lmDiallel: a new R package to fit diallel models. The Griffing’s models (1956)
Diallel mating designs are often used by plant breeders to compare the possible crosses between a set of genotypes. In spite of such widespread usage, the process of data analysis in R is not yet strightforward and it is not clear which tool should be routinely used. We recently gave a small contribution by publishing a paper in Plant Breeding (O...
8412 sym R (5268 sym/9 pcs)
lmDiallel: a new R package to fit diallel models. The Griffing’s models (1956)
Diallel mating designs are often used by plant breeders to compare the possible crosses between a set of genotypes. In spite of such widespread usage, the process of data analysis in R is not yet strightforward and it is not clear which tool should be routinely used. We recently gave a small contribution by publishing a paper in Plant Breeding (O...
8412 sym R (5268 sym/9 pcs)
Pairwise comparisons in nonlinear regression
Pairwise comparisons are one of the most debated topic in agricultural research: they are very often used and, sometimes, abused, in literature. I have nothing against the appropriate use of this very useful technique and, for those who are interested, some colleagues and I have given a bunch of (hopefully) useful suggestions in a paper, a few ye...
5476 sym R (2600 sym/5 pcs)
Pairwise comparisons in nonlinear regression
Pairwise comparisons are one of the most debated topic in agricultural research: they are very often used and, sometimes, abused, in literature. I have nothing against the appropriate use of this very useful technique and, for those who are interested, some colleagues and I have given a bunch of (hopefully) useful suggestions in a paper, a few ye...
5476 sym R (2600 sym/5 pcs)