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Rating Stats for

Frank

Rating
1617.40 (1,172nd)

Reputation
57,070 (1,677th)

Page: 1 2 3 ... 28

Title	Δ
R: access element in a column of lists with data.table	+1.18
How to "sort(unique(x))" or faster method on many variabl...	+0.33
Per group, select first row and another which matches a condition	-1.38
Pass strings as code to summarize multiple columns with data.table	-2.49
Create additional variable by condition in R	-1.23
Subsetting rows inside function in data.table	+0.61
Why does data.table j have a different environment when directly ca...	0.00
Conditional manipulation and extension of rows in data.table also c...	+1.69
Transform multiple columns with a function that uses different argu...	-2.55
Looking for a cleaner way of filtering a data.table based on value...	-0.53
Simple way to prevent data.table auto-index from being created with...	+1.37
Filling missing values based on a relationship with another table	-1.48
R: fast (conditional) subsetting where feasible	+1.22
Update column of dataframe1 based on column of dataframe2 + create...	+1.63
Subset and aggregate an original data.table based on a different co...	-0.34
Pass variable name as argument inside data.table	+1.21
R data.table subsetting by column value	-0.56
How to calculate sumifs across a date range referencing two tables...	-0.66
Converting all data.frames in environment to data.tables	+1.42
How to select all columns plus an additional expression	+0.32
How to efficiently count matches across a list in R?	-2.60
Match strings with partial matching allowed but only when there'...	+0.33
Why do I get a " Invalid .internal.selfref detected" warn...	0.00
Replacing column values based on a corresponding column r	+0.92
Element wise comparison in R	-2.56
Conditionally merging data from two data frames	0.00
Joining tables and applying functions to columns with the same name...	-1.82
to remove duplicates and making separate column for entries whose d...	+0.31
conditional grouping by value and number of rows in R	-1.47
First by group then identical for every other group member in R dat...	-2.33
subset data based on multiple conditions	-1.51
dplyr into data.table: filter > group by > count	0.00
Performing operation on multiple columns with data.table	0.00
What is the easiest way to find the smallest interval that contains...	-0.24
relabel clusters (column) in descending order in data table in R	-0.70
Creating a vector in R of counts for number of times each element a...	+0.62
Check whether two indicators are the same	+0.03
How to shift a column values based on column with logical value in R	0.00
Create lag variable with conditions and group by id	+0.30
Flag rows based on multiple conditions on specific columns in data....	+0.33
Should non-equi inner join (nomatch=0L) be bidirectional?	0.00
Create dummy based on character vectors in r	+1.67
How to manipulate data.frame in the data.table	-0.46
creating a unique variable based on row differences of another vari...	+0.11
How to do ifelse calculations based on first row by group in R data...	+1.22
Convert JSON string to JSON object using R	0.00
Subset table by replacing some row values	+0.84
How do I tag when rolling joins take effect in data.table	+0.09
data.table assign value to unique observation	+1.21
Is there are version of `setorder` that behaves like `setcolorder`	+1.05