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Rating Stats for

David Arenburg

Rating
1732.38 (66th)

Reputation
80,581 (1,024th)

Page: 1 ... 13 14 15 16 17 ... 33

Title	Δ
R Add previous month value as a column	+0.30
Filtering rows with specific characteristics relative to other rows	+1.19
Subsititute everything except an specific regular expression from a...	-0.03
Dplyr: compute features on the last X rows	0.00
Testing for multiple identical columns in R	+0.30
R Data frame column update	0.00
copy as long as value does not change in R	+1.43
Aggregate() - R - Is is possible to mask one of the aggregated colu...	+0.28
Filter a specific case using dplyr	-1.94
How do you invert function parameters for lapply in R?	-1.33
Persistent assignment in data.table with .SD	0.00
Specific removing all duplicates with R	+1.44
Calculate column medians with NA's	+0.99
R how to retrieve data from data.frame with multiple conditions	+0.70
r reshape data using row with NA to identify new column	+1.37
Cut vector into groups	0.00
R: Choosing specific number of combinations from all possible combi...	-0.55
apply, sapply and lappy return NULL	-1.24
Retrieve the most repeated (x, y) values in two columns in a data f...	+0.76
Multilevel sort with dplyr	+1.28
retaining column names in lapply(.SD,...) for data.table R	+1.18
New dataframe of means across dataframes	+0.27
r substring wildcard search to find text	-0.47
Case insensitive sort of vector of string in R	-0.85
Read Data into Time Series Object in R	+1.86
dplyr and tail to change last value in a group_by in r	+1.47
How to create a column based of a column with empty rows as delimit...	0.00
R Extract rows with values greater than previous columns	0.00
Find previous hour and next hour in R	-1.29
"fuzzy key matching" for a data.table merge	0.00
dummy variables to single categorical variable (factor) in R	0.00
Getting the top N sorted elements from a data.frame in R for large...	+0.29
Efficiently indicate meeting a condition by group	0.00
How do I find distinct time periods of context around instants in R?	0.00
dplyr: mutate using rows rather than columns	-0.66
Finding unique combinations irrespective of position	+0.81
R: split dataframe by multiple answers	+1.31
Combining chaining and assignment by reference in a data.table	0.00
Removing duplicate columns in table when there are more than one du...	+0.28
Select elements in named vector	0.00
Combine each element of a vector with another vector in R	-0.42
Returning the Date of First and Last Occurrence of a Factor Variable	+1.33
Merge rows with equal and unequal data	+1.39
create new variable based on a regular expression	+1.22
How to convert dates in a dataframe to a Date datatype in R?	+0.30
Dplyr summarise_each to aggregate results	+0.31
In R, apply the cut (segmentation) of one vector to the other	+0.32
Split data.frame row into multiple rows based on commas	-0.62
Ranking data frame	+0.01
Apply functions to hourly data in R	+0.86