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Compositional data, where observations represent proportions that sum to a constant, are ubiquitous in ecology, yet many analysts fall back on problematic approaches like separate binomial models, beta regression on ratios, or worse, standard linear regre…
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r-bloggers R-Bloggers.com is a blog aggregator of content contributed by bloggers who write about R (in English).
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I typically work in quantitative ecology and molecular epidemiology, where we use statistical models to predict species distributions or disease transmission patterns.
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Vector Autoregressions (VAR models), also known in the ecological literature as Multivariate Autoregressions (MAR models), are a class of Dynamic Linear Models that offer a principled way to model both delayed and contemporaneous interactions among sets of
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Seasonality is very common in real-world time series.
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Welcoming mvgam to the Comprehensive R Archive Network (CRAN) The goal of mvgam is to use a Bayesian framework to estimate parameters of Dynamic Generalized Additive Models (DGAMs) for time series with dynamic trend components.
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What are Generalized Additive Models (GAMs)?
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Purpose The following passage is quoted directly from Regression and other stories (Gelman, Hill and Vehtari 2022).
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The goal of mvgam is to use a Bayesian framework to estimate parameters of Dynamic Generalized Additive Models (DGAMs) for time series with dynamic trend components.
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Required libraries cmdstanr Purpose and model introduction This script simulates binary observations of an imperfectly observed data generating process (i.e. our measurements are made with error).
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I have been highly interested in multivariate time series modeling for the last few years and have spent a lot of time working out how to use hierarchical GAMs to tackle many of the questions I’m interested in.
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Required libraries cmdstanr MASS raster ggplot2 viridis Purpose and model introduction This script simulates Poisson observations of an underlying spatially autocorrelated data generating process.
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Here we will use mgcv to estimate parameters of nonlinear distributed lag models.
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Generalized Additive Models (GAMs) are flexible tools that have found particular application in the analysis of time series data.
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This goal of mrIML is to enable users to build and interpret multivariate machine learning models by harnessing the power and flexibility of the tidyverse (tidy model syntax in particular).
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This goal of MRFcov is to approximate interaction parameters of nodes in undirected Markov Random Fields (MRF) graphical networks.
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Hi, I'm the here-bot cat!
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Pre-requisites First, make sure you have the latest version of the distill package installed from CRAN: install.packages("distill") Restart your R session.
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Pre-requisites First, make sure you have the latest version of the postcards package installed from CRAN: install.packages("postcards") Restart your R session.
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So far, we’ve been leveraging GitHub Pages for publishing.
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Pre-requisites First, make sure you have the latest version of the blogdown package installed from CRAN: install.packages("blogdoown") Restart your R session.
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Welcome to the Introducing Yourself Online workshop!
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Profile https://docs.github.com/en/github/setting-up-and-managing-your-github-profile/personalizing-your-profile Pin projects to profile https://docs.github.com/en/github/setting-up-and-managing-your-github-profile/pinning-items-to-your-profile Profile RE…
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