jangorecki

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jangorecki has asked 48 questions and find answers to 110 problems.

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jangorecki questions

Extract comments from R source files, keep function in which they occurs
PL/R function accepting two tables as arguments
Add column by reference on rolling join
xaringan: generated table with nested formatted code
Top N rows by group using python datatable
R parallel: rbind parallely into separate data.frames
R .Last.call feature - similar to .Last.value
R data.table 1.9.2 issue on setkey
base R substitute names of the arguments to function call
TO DO list in rmarkdown

jangorecki answers

data.table - summarizing data - difference between `by` and `keyby`?
R xts and data.table and IDate
R: Drop columns from data.table, by reference, without having the name
create a filter expression (i) dynamically in data.table
How to disable data.table names at the bottom?
fast melt large 2d matrix to 3 column data.table
.N differs from length(variable) when variable is used in `by`
Filter data.table by multiple columns, dynamically
data.table: preallocating memory for future columns
R data.table assigning single-row list-type columns