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Rating Stats for

David Arenburg

Rating
1732.38 (66th) 		Reputation
80,581 (1,024th)
Page: 1 ... 6 7 8 9 10 ... 33
Title Δ
Count number of occurrences at end of string 0.00
R, warning sequencing in for loop +0.23
match across more than one variable in a data.frame +0.96
How do I subset column variables in DF1 based on the important vari... 0.00
Merging data.tables using `on` fails +0.23
How to change values from character to number using if and for stat... -0.38
mean diagonal minus one -0.22
How to rearrange data into one record per row? 0.00
Extract all values from list of lists with same vector name -0.19
Finding date based on time +0.86
change list within list to dataframe for statistical analysis +0.95
Split dataframes according to a vector of positions +0.85
Subset big data set using strings in two columns from other data set +0.24
apply a function to each element of a column individually +0.23
R compare column across rows +1.05
Turning list into a data.frame 0.00
Long to wide - Repeating columns 0.00
Reordering rows in multiple columns in a data.frame and afterwards... 0.00
Perform Genotyping data manipulation +0.97
Extract max and min date for a specific factor in data frame R 0.00
Replacing in data.frames in R 0.00
Convert factor into time in R -2.61
R data table recommended way to deal with date time +0.25
data.table index of a second column -1.04
Concatenate (paste) elements based on indices -1.66
Split a column to multiple columns -1.87
Dividing a string into multiple columns +0.46
Pivot rows into columns with values of counts for each measurement R +0.21
Determine and group perfectly correlated variable (efficiently) +0.11
Aggregate monthly status data to sequence data +0.59
How to insert (merge) list into list 0.00
How to extract all rows between start signal and end signal? +0.71
Merging two factor/character columns into one column -0.93
Determine the max values in one column based on another column +1.40
Add columns in vector but not in df 0.00
Character-location identity to create a new variable -0.13
Apply function to multiple data tables 0.00
Efficient way to apply this function to each row in data frame? -1.11
R dplyr count occurences of separate events in time series data -1.19
Looping through levels of a factor and comparing one variable to an... 0.00
R group variables in days calculated from interval between start an... +0.22
Adding column of max occurrence per row in dataframe -0.29
How to compare each value at the same position from multiple datase... 0.00
Create multiple lead variables in data.table +0.97
calculating sum of previous 3 rows in R data.table (by grid-square) +0.84
Relative reference to rows in large data set -0.69
check whether matrix rows equal a vector in R , vectorized +0.90
Get list of times from a start time by 5 minutes 0.00
R how to generate a descending sequence by subject measuring the di... +0.89
How to remove outiers from multi columns of a data frame -2.04