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sindri_baldur

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1543.60 (10,175th)
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8,049 (19,576th)
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Title Δ
How do I create a column which uses certain functions based on anot... 0.00
How to draw multiple line segment in ggplot +2.16
How to assign an attribute to a variable stored in a data.table 0.00
Using %in% in data.table with regular expression +2.28
Format numeric to two-digits -0.64
Is there a way to put negative sign before dollar sign +0.72
How to order a column within a group in R? +0.46
How to extract - sign from tail and place it before the number +1.30
converting to date format in dataframe in R +0.23
Simple and efficient way to subset a data frame using values and na... -0.10
use sapply on a column of a data frame? - R -1.60
How do I repeat a string in a data.frame column n times -0.16
Function input (data.table) unexpectedly modified 0.00
Replace a sequence of values by group depending on preceeding values -0.83
Get values of the dataframe as a vector +0.44
How to split elements of a colum separated by ";" and kee... +0.28
Convert function objects to strings/text? +1.46
R: Keep rows if a term from a separate vector appears in the row +0.47
R: aggregate a dataframe by setting the maximum number of missing o... -0.73
Extracting numbers out of a string using several separators in R +2.07
add NA for a value based on a condition, with tidyverse only, R -1.58
How do I count categorical values in a "+/-" table? +0.18
Change order of rows accomplishing a condition -0.86
Extract value from all objects with similar names to a table in R +0.27
How to count the strings in a vector? -1.02
Vlookup() equivalent in Dplyr -0.26
How to count years in the text in R? -0.02
Replace 'A' to 1, 'B' to 2, in R dataframe column +0.60
Analyzing data in order of column and then row in R -1.25
Extract and collapse non-missing elements by row in the data.table +2.31
Divide first row by second row in R +2.49
Transform data based on metadata avoiding for-loops using data.tabl... 0.00
extract numbers at specific position in a vector in r +0.42
Use string representation of variable in i for data.table +0.45
R: Paste two strings without space 0.00
Convert dataframe into factor in R 0.00
Subset by aggregate value with data.table 0.00
Merge lists and merge elements +0.00
Trim spaces in a column +0.02
Using the first column for variable names and vice versa with reshape +2.41
How to convert string to numeric to sum values in one cell in R? +1.14
How to transform a data frame with identical column names 0.00
Remove everything after any digit in a pattern +1.99
How to transform from long to wide data set in r by creating means +0.12
In data.table, How can I subset with ifelse() in j and use .N as th... 0.00
Modify over rows of a dataframe (purrr) -0.71
How to convert `c(a,b)` to parameter of `table(a,b)`? +1.81
How can I compute the duration of events splited in different rows... -1.88
How to replace specific rows based on conditions of another dataset... +0.01
R data table unique record count based on all combination of a give... +0.92