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1575.13 (3,482nd) 		Reputation
32,295 (3,688th)
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Title Δ
Subsetting a data.frame based on factor levels in a second data.frame -0.40
Update a column in a data frame matching a list of values -0.64
Index consecutive duplicates in vector -1.21
Trying to replace a set of numbers with zero in a dataframe -1.20
Sample function repeats same value within ifelse -2.19
sum of one column (with same name) in all data frames in a list +1.56
Count minimum values in a vector, where the minumum values are in c... +0.48
Create a combination of unique column names from two dataset withou... +0.38
Rolling column subtraction of Dataframe -1.80
Order, sort or rank rows by group in dataframe -1.17
Count the occurrences of words in a string row wise based on existi... -2.85
How to match data when ids have some signs or they have lower case... -2.49
convert list into data frame -0.16
Replicate rows in Matrix 0.00
Progression of non-missing values that have missing values in-between 0.00
How to subset all integers and/or numeric values in a character vec... +2.12
Reshaping columns of the same dataframe into one -2.30
Match each comma separated string in R dataframe with values in ano... -2.06
Counting specific sets of repeats 0.00
Finding the mean of timestamp data in r for time series data 0.00
Efficient way to calculate sum or return NA if all values are NA -1.21
How to multiply a matrix by a column in another data set? -2.46
Make dates into ordinal variables +1.06
How to paste columns using different connectors -0.90
How I can use a specific order of rows of my data set? -1.41
Arrange a matrix by rownames 0.00
How to update a column in one dataframe based on another dataframe? +0.08
How to remove columns based on a specific row with 0? +1.61
Entering additional rows in dataframe as mid points between values... -0.41
compare string column with other column by row wise +1.87
Many calculated columns based on other columns 0.00
How do I convert a data frame where some rows are duplicates except... 0.00
Recoding specific column values using reference list -0.19
Calculate mean of specific row pattern +0.39
Get values from a number line at specific position -0.93
Calculate direct dependencies among values of a dataframe in R -2.30
Exact word matching instead of in between strings matches 0.00
Concatenating special character strings in paste and paste0 0.00
add sum to tidyverse pipeline -0.63
Removing the %sign from rows and converting them to number +2.02
How to calculate percentages for rows and columns in a cross-tab? -0.84
Which() not matching given row to row of dataframe -0.65
How to condense non-sequential integers? +1.75
Extracting a string from the first square brackets, starting from r... -2.48
How can I divide several entire numbers separated by a comma in one... +0.10
Joining duplicate columns in single dataframe -0.67
Preferential removal of partial duplicates in a dataframe +1.53
Merge rows with similar information -0.37
add running counter for semi-consecutive strings in vector 0.00
Reformat vector 0.00