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Rating Stats for

Frank

Rating
1617.40 (1,172nd)

Reputation
57,070 (1,677th)

Page: 1 ... 14 15 16 17 18 ... 28

Title	Δ
Multiply column by another column in r	0.00
Sub-setting by multiple ordered columns, in a cleaner fashion	0.00
Break string into several columns using tidyr::extract regex	+1.84
Pass a list of columns to data.table’s CJ as a vector	0.00
Clean character vector and strsplit into dataframe	0.00
Convert columns of arbitrary class to the class of matching columns...	-0.31
R: add missing rows not using for loop	0.00
Regular Expression: Exclude keywords from Email R	0.00
Add leading zeros within string	-0.41
Replace group of symbols with one symbol in R	0.00
row-wise first/last occurrences from column series in data.table	-1.21
R sum element X in list of vector	+0.41
Splitting a string with a number in the end in R	+0.84
Last Sale Date and Next Sale Date through data.table grouped by Name	-0.07
How to create a new column based on other columns in a data.table?	-1.81
Re-organizing the data set based on all possible combinations	-0.94
R: replace/create column in data frame with dynamic variable name (...	0.00
R data.table cumulative sum function	0.00
Pull Numbers That Have Not Been Drawn	0.00
Retrieving the First Instance of a Character Preceding a Specified...	0.00
R: interaction(): combinations rather than permutations	0.00
R - Create a new variable where each observation depends on another...	+1.03
What is an efficient way to fetch matrix elements from index sets i...	-2.13
Looping grepl() through data.table (R)	+1.19
Matrix of booleans based on quantile in R	+2.13
Interactions between factors in data.table	0.00
How to pull values out of a list based on a vector of list indices...	0.00
Printing a large table to console	0.00
Extract last non-missing value in row with data.table	+2.00
R - Adding a flag in a new column only for rows of top/bottom ranks	+2.13
Sorting lists according to the order of another list in R	-2.31
How can I separate one column into two in R so that the all capital...	+0.54
Using loop functions to calculate row means with specific columns	0.00
Subtraction with variable number of columns in matrix in R	+1.75
R data.table ordered column lookup	-1.64
Merge two data frames in R according to ID-variable	0.00
Date just a number after lapply	0.00
Create a list of matrices with 1's / 0's based on a list of...	-1.14
insert empty rows to complete cases of a column	+1.11
Is there a way to `pipe through a list'?	0.00
R help using a loop add the same column to multiple data frames the...	-0.09
Split value from a data.frame and create additional row to store it...	-1.83
is there a way to skip rows within lapply to automate a task?	-1.40
Inserting a table object in a data.frame cell	0.00
Create column identifying minimum character from within a group and...	+1.66
How to handle lists and atomic types in one j expression with data....	0.00
Combining rows with swapped column values in R	0.00
Bring forward matching row values on a group-by max() call (to know...	-1.67
Nested subsetting with "["	+1.07
Gettings head() and tail() where NA is present for many variables	+0.04