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Rating Stats for

joel.wilson

Rating
1515.12 (44,850th)
Reputation
6,217 (26,189th)
Page: 1 2 3 4 5 ... 6
Title Δ
search for next closest element not in a list 0.00
Create a Model for Dummy Variables -0.47
R partial string matching and return value (in R) +0.50
Update pairs of columns based on pattern in their names +2.29
Loop over column names in regression 0.00
Strip trailing spaces from factor labels using dplyr chain -1.80
split columns according to sequence numbers +0.28
Using seq vectorwise -1.55
Search within a string from a list of keywords and tag keywords tha... -1.75
R finding last instance of string in one column that is in a second... +0.02
R assigning variables in for loop +0.52
Adding characters in all columns at once -0.50
logical based on rows below and above in other vector 0.00
Split data in r and save all the split files in csv +0.51
in R code; in a data frame(size 195 x 195), in a row corresponding... -0.84
dplyr manipulation rowwise grouping mutate +2.45
Error in POSIXlt +0.08
Choose only one member of a list that is a cell of a data frame in R -1.86
R : Mapping mutually exclusive columns to a single column +0.82
r join two lists and sum their values -0.81
save the text file using date and time in r +0.49
matching text with dataframe column in r +1.20
R: autopopulation of data and date complements in a date sequence? 0.00
adding selected strings from first column to another column of a da... -1.93
Extracting a numeric value from multiple filename in R +0.04
R: parsing, adding to vector and counting items 0.00
R data manipulation. Finding a column value and manipulating -0.68
For each row in a dataframe, loop through another dataframe +0.51
R - remove text after the second space -1.38
group unique rows in a dataframe by ID, and stack related values as... +0.45
Check if the first three columns of every row has a substring -0.01
String Splitting and Truncating using Regular Expressions in R -0.83
r data.table - exclude groups that contain certain values in rows +0.52
How to select the last day of the month in R +2.09
Error with ifelse statement when attempting to conditionally apply... 0.00
construct a symmetric matrix for relationships between elements -1.54
R: Joining Tables where t1.key1 = t2.key1 and t2.key2 partially mat... -1.87
R count and substract events from a data frame +1.28
How to calculate the relative frequency per groups -0.45
R: Conditionally remove duplicated rows -0.94
Overwriting a row with a matched ID value in the same dataframe -2.14
how to find sum of number between two zeroes and group by specific... +2.21
R subset vector when treated as strings +2.02
lubridate: how to parse month-year? 0.00
R - Date in a bad format - LMT format +0.08
R : Add dynamic column name to row in R +2.11
Calculate the mean (and weighted mean) of several columns within a... +0.09
Dealing with date-time string that has day of the week -1.39
R sum values according to 1 column in data frame 0.00
Extraction special rows from a dataframe -0.50