Introduction I hate to admit that I’ve been using R exclusively for data analysis for about 5 or 6 years and am just now realizing that I likely have been…
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R – Finding and Setting Working Directory
R, like many software programs, likes to have a folder or directory on your computer to operate in. When you start R, depending on how you start it and whether…
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R – changing mirror in RStudio
CRAN (The Comprehensive R Archive Network) is a distributed set of servers that allow people to download the various R packages from a bunch of servers that are all “mirrors”…
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Continue readingR – create scatterplot with ggplot2
R has pretty amazing capabilities for creating charts and graphs. One of the most common packages for this is ggplot2. However, it’s not the most intuitive package I have used…
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Continue readingR – find cases (rows) that match specific criteria
I regularly need to find a specific case or set of cases that meet some criteria when analyzing data, often so I can modify those values for one reason or…
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Continue readingR – delete one or several variables in a dataset
I regularly create variables while analyzing data and then find that I need to delete a variable I created. At times, I just want to get rid of a variable…
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Continue readingR – create variable filled with zeros
I ran into a situation where I needed to add a variable to a dataset. I knew that I was then going to modify some of the values in the…
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Continue readingR (Linux) – creating a wordcloud from PDF
On my professional website, I use wordclouds from the text of my publications as the featured images for the posts where I share the publications. I have used a website…
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Continue readingR (Linux) – basic installation
To install the R programming environment on Linux is pretty straightforward, but it does require a little bit of know how in order to find the correct packages. As is…
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