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1575.13 (3,482nd) 		Reputation
32,295 (3,688th)
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Title Δ
Split a string on alternating index +0.64
Compare Lists in datatable -0.13
Selecting dates from two dataframes and creating a new dataframe in R 0.00
The identifier of the max of the variables according to the groups +1.41
Concatenation between rows +1.31
Create dataframe column name or list element with a variable 0.00
Applying a function that takes columns and rows of matrices as inpu... +2.00
Create mutiple dataframe or matrix using Loop 0.00
Filter out substrings in a string vector +1.66
Remove words from stopword list +1.67
Filter the middle row of each group -2.60
Using rle to eliminate first and last sequences -1.29
How to keep values in a dataframe based on values in another datafr... -0.66
converting row heading to column and count the value 0.00
Maintain row names while merge 2 dataframes 0.00
Nested loops for Paste function -0.28
Convert a dataframe to large character +0.37
Remove rows where all values of a column are identical, based on an... +1.30
Replace a sequence in data frame column -0.89
Aggregating a categorical table in R (With percentages) +1.62
Regex find words only containing two vowels -1.79
How to split each column into its own data frame? -2.49
Cartesian Product on column headers for Time Series Data 0.00
Find Pattern in consecutive numbers 0.00
How to separate integers and doubles in a vector? +0.92
Compare two vectors of numbers based on threshold of tolerance (... +0.92
Select columns based on columns sum +0.78
join or merge data frames by if value is in one of multiple columns 0.00
replace list element with another list element based on name -0.21
data.table optimisation - conditional sum +0.34
Calculate average of month and replace values of other column +1.03
Subset rows where string matches rows +1.33
Summarize the row based on condition +1.37
How to easily create variable with number of group rows satisfying... +1.71
Rename column R 0.00
Reshaping basket data frame for separating items in a basket -1.04
non zeros per columns per subgroup data frame +1.71
full_join by variable as column names +0.93
Extract *specific* elements of a list column to new columns +1.86
Frequency of vectors inside list +1.33
Use dplyr to sort tallyed data on factor level +1.59
Read multiple parquet files from multiple partitions -2.51
Calculate / Translate vector of numbers in binary matrix / vector i... -0.32
separate data in 2 groups on condition +0.83
Find 0,1-variables in DF and set as factor with level order +1.53
zigzag indexing in matrix -0.80
Summing up rows with the same column IDs, of matrices in a list 0.00
Find first match of condition by given variable -2.30
Replacing empty values with plyr::revalue +0.65
Reordering columns with multiple variables in var.values after dcast 0.00