| Title |
Δ |
| Using a rolling time interval to count rows in R and dplyr
|
+0.29 |
| R conditional filter
|
-0.28 |
| Efficiently joining two data tables with a condition
|
+1.41 |
| Turning single element lists, including NULL, to vector more effici...
|
+0.30 |
| Different results from dplyr and data.table
|
0.00 |
| transposed vector by group within data.table
|
+0.79 |
| Merge two data frames and select only first instance
|
+1.07 |
| Include columns not used for calculation in data.table result
|
-1.62 |
| How to programmatically create binary columns based on a categorica...
|
+0.58 |
| Sum of most recent values across groups
|
+0.30 |
| Date Interval removal
|
+0.29 |
| R: find first non-NA observation in data.table column by group
|
+0.72 |
| In R's data.table, how is the key of a data.table preserved int...
|
0.00 |
| setDT() is not adding additional columns
|
+1.66 |
| data.table confusion using rollends argument of rolling join
|
0.00 |
| microbenchmark with datatable, tapply, aggregate, ave and dplyr
|
0.00 |
| R's data.table Truncating Bits?
|
0.00 |
| calculate median from data.table columns in R
|
+1.65 |
| Look up from different dataframes depending on a column
|
+0.97 |
| Group by one column, select row with minimum in one column for ever...
|
+1.08 |
| Merging in R based on column and row
|
+0.90 |
| Which is not working as expected
|
-0.54 |
| Calculate average temperature (derived from other dataset) over sta...
|
+0.98 |
| Parse GTF File from Gencode
|
+0.81 |
| R, data.table or dplyr, long format splitting colnames
|
+1.38 |
| `fread` with headers with special characters (latin1) and unusual n...
|
0.00 |
| Melting on selected columns with na.rm = T, removes the data row co...
|
0.00 |
| How to melt with data.table into person years getting year suffix a...
|
+0.32 |
| Merging data.tables by 2 columns representing variably-ordered pairs
|
0.00 |
| Update data frame / table from data with similar structure
|
+1.52 |
| Count of unique values in a rolling date range for R
|
-2.55 |
| How to match 2 files and get the required data with if loops in R?
|
-0.70 |
| dplyr: efficient way to filter one data frame by ranges in another
|
+0.92 |
| Aggregate one data frame by time intervals from another data frame
|
+0.41 |
| Take dates from one dataframe and filter data in another dataframe...
|
0.00 |
| Reshaping data in R with "login" "logout" times
|
+0.07 |
| Data.table: Add rows for missing combinations of 2 factors without...
|
0.00 |
| Simultaneous join and update subject to a where clause on two data....
|
0.00 |
| R: Quickly Performing Operations on Subsets of a Data Frame, then R...
|
-0.18 |
| Use string to select column per row in dplyr (or base R)
|
-1.32 |
| Merge two data frames to fill in missing dates
|
-0.41 |
| merge data frames in R in two dimensions
|
-0.56 |
| number of unique column value combinations with data.table
|
+1.40 |
| What is a concise and clear idiom for mapping values into a data.ta...
|
+2.52 |
| Make the `drop` argument in `dcast` only look at the RHS of the for...
|
0.00 |
| Is there a performance advantage to multiple data.table assignments...
|
+2.10 |
| data.table "list" versus ":=" in dealing with NaN
|
0.00 |
| Get top k records per group, where k differs by group, in R data.ta...
|
+0.31 |
| How to find the last observation in the next 10 seconds comparing t...
|
0.00 |
| [R]How Can I Merge two tables by conditions like " a. key >...
|
+0.56 |