Josh O'Brien

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Josh O'Brien has asked 30 questions and find answers to 1223 problems.

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Josh O'Brien questions

Which JavaScript code implements shiny's numericInput widget?
Making knitr code blocks more cleanly cut-and-pastable
Any pitfalls to using programmatically constructed formulas?
How to perform a vector overlay of two SpatialPolygonsDataFrame objects?
How to add names to a numpy array without changing its dimension?
Why does trace(..., edit=TRUE) not work when ... = [.data.table
How to locate code called by .External2()?
Any way to access function installed by makeActiveBinding?
How to set knitr chunk output width on a per chunk basis?
Can .SD be viewed from a browser within [.data.table()?

Josh O'Brien answers

python rpy2 module: refresh global R environment
R Organize data in a list
Accessing the first business day of a Month
How to reclassify dataframe column?
Get length of string in R as it would be `cat()`d (tab handling)
Checking for missing items in a ragged panel stored in a data.table
strsplit a melted dataset
Generate all combinations given a constraint
How to have static axis values when plotting in R?
Adding extra column name and row name to a table in R?