Andrew

Andrew has asked 35 questions and find answers to 50 problems.

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About

I'm currently working on a PhD in Public Policy at the Sanford School of Public Policy at Duke University, where I'm studying education and freedom of expression INGOs that work in Egypt and China. Life rocks.

Andrew questions

Map aesthetics to LINESTRING geometries with sf in R
Access a build system from another build system in Sublime Text 2
knitr generating errors in document but generates figures correctly regardless
Subtract previous year's from value from each grouped row in data frame
Calculate group mean while excluding current observation using dplyr
Is Markdown (with strip_tags) sufficient to stop XSS attacks?
Find matches of a vector of strings in another vector of strings
How to use Cairo PNGs in R Markdown
How can I set file permissions from Perl?
How do I calculate the probability for a given quantile in R?

Andrew answers

How can I higlight PHP code in the Drupal 6 editor?
Export plotly graph from R to self-contained HTML file programatically [duplicate]
R ddply looping ; multiple factors
knitr generating errors in document but generates figures correctly regardless
Create indicator variables of holidays from a date column
Getting the name of a data frame
Output each factor level as dummy variable in stargazer summary statistics table
r - Add significance level to correlation heatmap [duplicate]
How to plot density curves for each column in R?
ggplot2 - Multiple Boxplots from Sources of Different Lengths