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Frank

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1617.40 (1,172nd) 		Reputation
57,070 (1,677th)
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Title Δ
How do I prevent {data.table}foverlaps from feeding NA's into i... 0.00
R - Add column to data.table from a calculation over a relative sub... +0.28
r rowdies iteration on a data table, again 0.00
Replacing NA values from another dataframe by id +1.10
Comparing values in multiple columns in R dataframes & updating... 0.00
Multiple conditions for r data.table calculation 0.00
reshaping when there is no variable value in r -0.04
R - Nested list to tibble -0.61
Adding a new column where each element is a cumulative list of elem... 0.00
dplyr lag of different group -0.13
List of data frames to nested list based on names - R -3.21
Quick way to count number of position match of a given character be... +0.74
Programmatic renaming of columns after reshaping in R -0.21
Select columns in data table in R +0.46
Piecewise interpolation for entire data.frame R +0.28
R Date Ranges Data Frame to Per Hour Sum Of Durations +0.27
Any way to reconstruct new data.frame by merging multiple data.fram... +0.29
R - removing data table rows based on two values -0.48
Rank most recent scores of students within a given date - 30 days w... +0.87
Data.table - subsetting within groups during group by is slow 0.00
Define function with condition NA +0.27
Change column class based on other data frame +1.21
Evaluating same column data.table in r -2.45
Error: measure variables not found (data.table::melt) 0.00
How to find (not replace) leading NAs, gaps, and final NAs in data.... +0.27
Find and subset patterns in data table +1.04
data.table do not compute NA groups in by 0.00
Update join with multiple rows -0.82
Creating Loop for the Number of Occurrences of Specific Events +0.29
Operation on a column with filtering in R +0.29
How to sum variables in groups by condition with ave()? 0.00
printing one element of a dataframe in a magrittr pipe 0.00
Modify, extract, and concatenate list sub-elements into a data.fram... -0.19
How do I select columns conditional to the value of another column?... -0.49
r - Efficiently create variable indicating if date variable precede... +0.85
Splitting two messy vectors in a data frame into one common column -0.03
applying cumsum() from different starting points 0.00
How to shift multiple cell values in a data.table +0.26
Sum up cells by some columns -0.32
R - Faster way of creating conditional sums as new column in data f... 0.00
Aggregating by a substring of column 0.00
passing unquoted criterion to count in dplyr 0.00
R - overcome "cut" ignoring values outside of range in da... 0.00
Understanding scope with non-standard evaluations in R data.table 0.00
updating column values based on another data frame in R +1.27
data.table equivalent of dplyr::filter_at -1.39
Creating Conditional Indices on Transactional Data in R +0.28
How to make sure data.table uses GForce +0.29
Find a sequence of numbers in a vector -0.14
R generating new data.table slowdown 0.00