Kevin Ushey

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Kevin Ushey has asked 13 questions and find answers to 131 problems.

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Kevin Ushey questions

How do I substitute symbols in a language object?
Slice a string at consecutive indices with R / Rcpp?
How does Roxygen to handle infix binary operators (eg. %in%)?
How can I control the x position of boxplots in ggplot2?
Why is sapply relatively slow when querying attributes on variables in a data.frame?
Produce two plots from same chunk / statement in knitr
How should I count the number of unique rows in a 'binary' matrix?
Strange mixing of system + homebrew Python with LLDB
How do I prevent "r 'library' or 'require' calls not declared" warnings when developing a package?

Kevin Ushey answers

R install package stringi in renv
Error: "project "path/to/file.rda" has no activated script and so cannot be activated" with renv
How can I copy and entire renv based project to a new PC (which does not have internet access)?
'curl' error is not allowing packages installation in RStudio under renv
Iterate over S4 object slots Rcpp
'unlockEnvironment' implemented via 'Rcpp' instead of 'inline'
Risk in deleting suspended session data?
Submitting R package that use OpenMP
Extract data elements found in a single column
Error when installing "devtools" package for R in Ubuntu