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Rating Stats for

Jaap

Rating
1662.99 (393rd)

Reputation
58,717 (1,592nd)

Page: 1 2 3 ... 23

Title	Δ
Dealing with "R type" text files with rownames as the fir...	0.00
Replace values in String with matching values from another	0.00
Post-processing of full_join output to remove multiplicity	0.00
Aggregating monthly data to quarter data	0.00
merge 2 data.tables on partial match	0.00
Using case_when and between with a correspondance threshold table	+0.11
Sort data.frame or data.table using vector of column names	+1.35
How do we avoid for-loops when we want to conditionally add columns...	0.00
dplyr mutate converting "No" to 0 and "Yes" to 1	+0.35
Replace values in several data.table's columns that meet a cond...	+0.63
Count the number of value changes within the past n days	+1.33
How do I find the sum of inequalities by unique group/subgroup pairs?	0.00
Increasing code execution time-efficiency using data.table and for-...	-0.00
Reordering a daily data series into weekly rows with Mon, Tue, Wed,...	+1.40
Getting the values calculated by stat_summary with mean_cl_boot	0.00
Select min or max values within one cell (delimited string)	-1.15
transmute a large data frame into 3 columns	+1.28
'position-aware' aligning of sequences with letter annotati...	-0.12
Is there an optimal way to create a bunch of new columns with data....	-0.20
Conditional subset based on one occurrence	-0.25
Merge two data.tables / data.frames with x having multiple instance...	+1.44
Finding the cause of an unwanted deletion within an lappy function	-2.73
Subsetting on a condition for two rows at the same time	0.00
na.locf in data.table when completing by group	+1.21
Use dot dot dot (...) to indicate columns returned from a self-defi...	+1.41
Use tidyverse to replace NA with mean of data, by group	0.00
How to replace certain data frame value with it's unknown colum...	-0.26
How do I apply a function to a subset of each of several columns?	+1.35
Why is data.table join not working with dates?	+0.29
How to duplicate last row by group (ID)?	+1.37
Subsetting rows inside function in data.table	+1.48
How do you join two data.tables on column(s), Y, while conditioning...	0.00
How to meet multi condition with data.table in more graceful way?	+1.48
Subset by column criteria AND randomly sample rows of a data.table	+0.37
Filtering observations based on specific date condition using data....	-0.54
Find the maximum of a variable by overlapping time intervals	0.00
Join each row with each other row	+0.29
How to match linked steps indicated by two columns of a data.table	-2.90
Converting a vector of characters including the "^" opera...	0.00
extend data with data.table	-2.55
How to merge two data.table under two conditions	0.00
Get minimum value for each group by multiple subgroups	0.00
concatenate periods to get time sequences, simultaneously for diffe...	+0.97
Summarise data sacrificing the least resolution (creating groups of...	0.00
data.table merge() with NA in by column	0.00
data.table alternative to piping	0.00
Subset data.table based on observation occurring x times in a column	+1.44
New data.table column returns nth largest value in a row	-1.77
How do I create a variable that increments by 1 based on the value...	+0.83
Min and max of NA sequences	-0.86