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Rating Stats for

Frank

Rating
1617.40 (1,172nd)

Reputation
57,070 (1,677th)

Page: 1 ... 19 20 21 22 23 ... 28

Title	Δ
r data.table: two questions about 'by' ((1)=.I and (2)='...	0.00
Calculating Powerset in R	-0.04
Finding number of consecutive zeros	0.00
Cbind two data but with some modifications using data.table	+2.01
R: Viewing multiple objects using View function	+0.17
Count number of occurence to an index of a vector	0.00
dplyr summarize with subtotals	+1.19
Best way to assign variable names to values from a parameter file i...	0.00
Join two data tables to override values by date range	-1.36
Getting rid of wash out rows in R dataframe by group	+2.46
Sub-indexing a list to apply a function in R	-2.20
R - Generate a sequence of numbers	-0.49
R: split data based on a factor, add a ranking column and extract	+0.30
Comp. Efficent way of resetting sequence if condition met ( R )	+0.25
Applying a function returning list/matrix row-wise in data.table	-0.52
Efficient functions over specific data.frame columns in a list of d...	-0.18
How to remove one-off increases in value	-0.49
calculate mean for Long Format - n_distinct issue and group_by issue	0.00
How to filter in dplyr based upon an associated condition	0.00
How to merge data.tables keeping a column pair mapping fixed?	+2.64
r - Force which() to return only first match	-1.45
How to use regex to find values that may be interspersed with spaces	-0.50
R data.table column names not working within a function	+1.25
Connecting components of a graph using data.table	0.00
Selecting frequent values from multiple columns from R table	-0.37
Using R to Assign Treatments to Groups	0.00
Alternative of slower ifelse in R data table	0.00
Getting maximum value for specific matrix element over multiple mat...	-1.35
Sum of all pairwise row products as a two way matrix	+1.53
Find and replace entire value in R	+0.07
R data.table: subgroup weighted percent of group	+0.47
R - Loop through different matrices without using loop ! Help to si...	0.00
Paste the elements of two columns	-1.34
R: Create 2 columns with difference and percentages values of anoth...	+2.28
R passing data.table parameters through function calls	-1.01
Vectorize thinking	-0.03
Aggregate not returning all calculations	-1.37
Sum function in R	+0.30
For each `pop` get frequencies of the elements of `id`	+2.24
how do you grep certain parts of a string in R	+1.54
Using identical() in R with multiple vectors	-1.96
R data.table replace "NULL" with `NA` when columns are fa...	-0.10
Fastest way to check if dataframe is empty	0.00
Random sample of character vector, without elements prefixing one a...	+0.66
Referring to data.table columns using dynamic text in a loop	+2.08
Why doesn't this conditional lookup work?	+0.48
r count combinations of elements in groups	+1.89
Loops in R, aggregating data based on different variable	+2.54
R: find range of X	0.00
Add columns with predefined values to a dataframe	-0.51