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  • A Tour of R Markdown

    Sep 12, 2019 · 7 min read · html reproducibility R Markdown  ·
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    A Tour of R Markdown

    By Matt Brousil Graduate students and other researchers often find themselves pasting figures or tables into Microsoft Word or other word processing software in order to share them with collaborators or PIs. Anyone who has tried to format text and images in the same Word document knows that this is a harrowing …

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  • Cleaning messy scripts and data

    Apr 10, 2019 · 10 min read · Data formatting janitor  ·
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    By Matt Brousil The goal of this walkthrough is to look over some methods for cleaning and maintaining data and scripts. This will not be comprehensive for either topic, but contains some tips I've collected. Data Cleaned data is a wonderful thing. There are resources like Data Carpentry to provide crash courses in how …

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  • Best practices in R version control

    Jan 30, 2019 · 3 min read  ·
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    By Nicholas Potter Resources: A list of best practices Ropensci's rrrpkg suggestions An official using GIT with Rstudio A better GIT and Rstudio article Why R projects? Because setwd() is evil (source). here: an R packages to manage the working directory and file locations A scenario: A new project on water …

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  • Raster analyses in R

    Jan 30, 2019 · 9 min read · gis mapping ncdf raster  ·
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    By Alli Cramer Spatial analysis in R For one of my primary experiences of spatial analysis in R, we used a number of existing data bases to determine the average yearly temperature and precipitation for over 1.3 million lakes. One of my duties in this project was to combine multiple raster layers from a reanalysis of …

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  • Introduction to Time Series in R

    Oct 24, 2018 · 11 min read · acf arima astsa forcasting pacf time series  ·
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    By Alli Cramer 1library(astsa) Lynx Data set For this example, we will be using a Lynx population dataset. You can find the dataset here: the "Annual Number of Lynx Trapped on the Mackenzie River from 1821-1934. From: …

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  • Text Analysis in R

    Oct 16, 2018 · 12 min read · text analysis  ·
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    By Michael F. Meyer For the reader: This document is to serve as a tutorial for the R Working Group at Washington State University. For more information, please contact Michael F. Meyer For BeginneRs There are three main takeaways from this tutorial. You will have learned: How to read in a text file and convert a …

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  • Webscraping in R

    Oct 12, 2018 · 5 min read · webscraping rvest  ·
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    Things to Look for as a Beginner These are the three functions that are used during this presentation for webscraping. These are the only functions that are used from the "rvest" package. Everything else in this presentation is base R. read_html() html_nodes() html_table() What is Web Scraping? Web scraping …

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  • Code Profiling: Monitoring and Speeding up your code

    Sep 24, 2018 · 9 min read · advanced best practices code profiling speed  ·
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    By Julia Piaskowski Sources Thomas Lumley, Github repo useRfasteR Hadley Wickham, Profiling, Advanced R Dirk Eddelbuettel, Rcpp The Process for Improving Code: (quote from Advanced R) Find the biggest bottleneck (the slowest part of your code). Try to eliminate it (you may not succeed but that's ok). Repeat …

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  • How to Shiny

    Sep 12, 2018 · 9 min read · interactive shiny web interface  ·
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    By Matt Brousil Making our first shiny app: Shiny is a package developed by RStudio. It allows you to build interactive apps online, displaying data, figures, etc. It's very flexible and only requires that you know how to use R in order to build an app. Once you have an app written, it can be hosted online or even …

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  • Mapping in R

    Apr 30, 2018 · 10 min read · cowplot grid mapping mapview sf spatial data spData spDataLarge tidyverse tmap  ·
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    Post by Dominik Schneider A couple things to note. Spatial/gis functions in R are undergoing a massive change right now. The old stalwart sp has been succeeded by sf (simple features), which is compatible with the open geospatial consortium standards. When you are looking for solutions online, make sure you know which …

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CougRstats Blog

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Featured Posts

  • Raster parallel process in R
  • Using Python in R Studio with Reticulate
  • Non-metric Multidimensional Scaling (NMDS) in R

Recent Posts

  • Raster parallel process in R
  • Using Python in R Studio with Reticulate
  • Feature Engineering with Sliding Windows and Lagged Inputs
  • Introduction to mapping in R
  • Research profiles with Shiny Dashboard: A case study in a community survey for antimicrobial resistance in Guatemala

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