Josh O'Brien

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Josh O'Brien has asked 30 questions and find answers to 1255 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

Merging .csv files with R [duplicate]
Working with a list of lists of dataframes with different dimensions
sorting non-alphanumeric characters in ASCII order in R
Extracting the nth character from a vector of strings [duplicate]
Cannot reproduce the prediction made by arima
Add difference and percent change of every column in a data frame?
Extracting specified word from a vector using R
changing data into long format using two variable
Significance test of groups based on means and ranking
Suppressing Error Messages in knitr