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Title Δ
Generate dates between two dates in a dataframe -2.28
R: Barchart with specific values -0.05
Create a new column depending on different values in other columns R +1.73
How to handle missing variables in R -0.29
Apply a list for 3 ways frequency table in R -2.32
Aggregate in R with parameter list +1.70
R dataframe create new column based on other columns -1.76
Create a random data from a subset in R -2.12
Missing data per questionnaire for a speficic group 0.00
How to get middle word out of 3 word vector in R -1.95
T-test between vectors subseted from the data frame +0.47
r- split a column to multiple columns - changing pattern +2.02
Remove comma and or period except if certain condition holds for la... -1.14
Filter/grep functions behaving oddly -1.67
How to subset by group with dplyr +1.66
Specify order of columns of dcast output 0.00
rbind using for loop outputting several matrices -0.06
How can you extract strings from a merged column based off of previ... +0.46
Collapsing factor level for all the factor variable in dataframe ba... +0.45
R replace string-matching in dataframe with value from another data... -0.05
Subtract two strings from each other +0.18
Subsetting only on an ID field which does not have duplicates (look... +0.45
Why do I get "number of items to replace is not a multiple of... +0.45
chi square test / grubbs analysis 0.00
How to sum all instances of a number in a string in R +0.38
Counting the number of months from a column in a dataframe to each... +0.45
dplyr-friendly bitwise operations on strings in R +0.45
Conditionally rename the value depending on the previous row +1.02
Multiply rows in 2 columns by grouping flagged rows in R -2.24
subsetting on two conditions in loop 0.00
Replace user names by numbers and count number of orders +0.08
assigning column vector to multiple data.frame object as common att... 0.00
Retrieving a specific part of a string in R -0.23
Exclude rows with the same variable in dataframe that have the same... +1.03
R - sum rows in data fame with string patterns that meet one of mul... 0.00
column selection from string variables using dplyr 0.00
R data.table - categorical values in one column to binary values in... +1.79
Edit / merge rows if consecutive factor with R +0.44
How to create new column with all non-NA values from multiple other... +0.24
Adding another column to a df in R by shifting the sequence 1 down... +1.87
How to apply a function only to the first row of a group in dplyr? -0.07
select observations based on multiple conditions 0.00
Apply row-wise Reduce with mutate_? 0.00
Determine R Data Frame Row Values from Column Value Comparison +2.13
How to create separate dataframe by looping over specific column in... -0.40
Extracting words to the left and right of key term +0.16
How to gather then mutate a new column then spread to wide format a... +1.04
Summary of Dataset using lapply +0.13
How to delete values in a column of the data which appear less than... -0.84
how to create edgelist from vector in R -0.32