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Alex
Alex has asked
81
questions and find answers to
46
problems.
Stats
1.7k
EtPoint
447
Vote count
81
questions
46
answers
About
Alex questions
Does unix_timestamp truncate or round milliseconds?
How do you change the data table rolling join condition from weak inequality to strict inequality?
Are there any drawbacks using logical instead of integer arrays and values in arithmetic operations?
Does operator precedence explain the difference in these expressions involving multiplication of a numeric with a negated logical?
Is it possible to automatically inherit data table operations when wrapping a data table in an R6 class?
Why does which work faster on a data frame column compared to a matrix column?
How to turn a named vector into a named list, while grouping entries with the same name into one list element?
Only source functions in a .R file
Is this a bug in group_by and lead/lag?
How do you get R's null and residual deviance equivalents in Matlab fitglm?
Alex answers
How to remove N rows of a data frame, according to conditions
updating line number column prevented due to `rowwise()`? [duplicate]
Need to count the number of times a threshold value is met (or exceeded) per year (using R)
Union All of SQL temporary tables created using dplyr?
Compute difference between columns and save results in a new one using dplyr
Why does this code double transpose a vector - is this a noop?
Function name in single quotation marks in R
How do I see the help for the `dplyr::collect` method?
Is there any authoritative documentation on R release nicknames?
Is there a dplyr equivalent to data.table::rleid?
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