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1575.13 (3,482nd) 		Reputation
32,295 (3,688th)
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Title Δ
Grouping by date and collapsing rows into a single one +0.40
Remove row if any column contains a specific string -0.68
What is the best way to clean a data.frame in which row values are... -1.67
Three-way comparison of values, count number of 'successes' 0.00
DataFrame - Unique values -0.59
Creating monthly data and expanding data +0.84
Looping through variables with an iterative component 0.00
Filling the 0-1 column with cumulative sums in between 1s -1.09
Replace all characters after the first in a string +0.47
Use a logical vector with sapply 0.00
Calculate count of number of switch in vector +1.03
Regular expression to select 2 kinds of substrings +0.15
stringr str_locate_all not returning the proper index in a dplyr st... 0.00
associate a specific index to a vector +0.39
Look up of comma separated data in another table -0.62
Count number of shared observations between samples using dplyr -1.54
Group rows by minimum value -1.50
How to find time difference between values present in two columns i... 0.00
How to find common elements across multiple years? (select same ent... -0.15
How to compare the count of unique values 0.00
Subsetting dataframe using conditions and saving each subset as a n... -0.37
Adding a column based on values of other columns -0.66
How can I select two characters in a string? +0.95
Strange object - vector or list? +0.85
argument 'pattern' has length > 1 and only the first ele... -0.11
Use values as new variables conditional on other variable -0.52
Creating paired combinations from a list of products in a data frame -1.27
set all same values NA, groupwise and colwise 0.00
How to replace the empty cells in r +0.59
R Groupby by column to return unique values in multiple columns +0.40
list input to sprintf (circumvent the ellipsis ... function) +1.56
cut point according specific interval +0.40
Day difference between rows related to other row that is not NA +1.58
separate 10 consecutive numbers which are without space 0.00
Pasting a string on every other element of a vector +0.61
Extract consecutive bouts by time and date +0.77
How to match, extract and assign a pattern 0.00
Convert a character variable to a list of list -1.85
Omit rows in all data.frames in list, who don't share a common ID 0.00
Reshaping data based on different columns 0.00
Merge two different dataframes when column with similar value has s... +0.39
Using ifelse function by group +1.57
Fill Dates based on Consecutive occurrences +0.41
Calculate p-values in a for loop -0.64
Flexible time selection 0.00
Removing the special symbols in data.frame column values 0.00
Removing certain rows with a condition +1.60
Add rows with missing years by group -0.29
Filter duplicates by date and id +0.43
Efficient method to convert set of ranges in a dataframe to frequen... +0.57