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Science at the speed of light
May be is not going that fast, but at the speed of R at least. And R is pretty quick. This has pros and cons. I think that understanding the drawbacks is key to maximize the good things of speed, so...
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Quick and dirty notes on General Linear Mix Models
My datasets tend to have random factors. I try to stick to general models whenever I can to avoid dealing with both random factors and complex error distributions (not always possible). I am compiling...
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About Data
I recently did a workshop about data with PhD students. That was great to order my thoughts and put together a lot of good resources. All material used (with lots of links) is available in GitHub:...
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On Functional Diversity metrics
Summary: FD is getting very popular, so I figured that would be good to post not only the code (mostly borrowed) I am using: https://github.com/ibartomeus/fundiv, but also what I learnt of it. This...
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How to update and backup a MySQL database under version control and all...
I am trying to have better workflows to ensure data quality and two important things for me are first, scripting as much as posible the data manipulation process, and second, backing up the database we...
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Preferring a preference index
I’ve been reading about preference indexes lately, specifically for characterising pollinator preferences for plants, so here is what I learnt. Preference is defined as using an item (e.g. plant) more...
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Getting the most of mix models with random slopes
I use mix models as a way to find general patterns integrating different levels of information (i.e. the random effects). Sometimes you only want to focus on the general effects, but others the...
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is_invasive( ) got a new best friend: is_native( )
A while ago I did a function to check if a species was among the worst invaders. I am really happy this function was used and ropensci put it in a package. However the function does not tell you if a...
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Power analysis for mixed models
[Update: An updated version of pamm has been submitted to CRAN. See below for his author comments.] This is a quick note that may be useful for some people. I was interested in knowing how many years...
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Fun Data for teaching R
I’ll be running an R course soon and I am looking for fun (public) datasets to use in data manipulation and visualization. I would like to use a single dataset that has some easy variables for the...
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