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Simon O'Hanlon

Rating
1586.06 (2,563rd)
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47,115 (2,196th)
Page: 1 2 3 4 5 6 ... 16
Title Δ
Extracting a random sample of rows in a data.frame with a nested co... +0.40
unexpected behavior in pmatch while matching '+' in R +0.38
How do I test if three variables are equal [R] +0.37
Convert factor variable of strings to list of integers using data.t... 0.00
R - Assign column value based on closest match in second data frame +1.47
R: Define levels of a factor in data frame 0.00
Assign column names to list of dataframes 0.00
How to create a new variable in a data frame in R to identify first... 0.00
R: Compare all the columns pairwise in matrix +1.53
strsplit into data.frame with incomplete input +0.15
How to produce NAs in reproducible data in r +1.83
R: Merge data.table and fill in NAs +2.16
R - indices of matching values of two data.tables +1.62
How to merge all elements in a list in R considering different name... 0.00
Exact match with str_locate regex in R +0.90
Counting in R data.table 0.00
Create several new derived variables from existing variables in dat... -0.74
R - paste() invokes as.numeric() when passing data frame to it? 0.00
R data.table doing an inner join on a field and operating on another? +1.85
Adding a counter column for a set of similar rows in R 0.00
Generate integer random numbers from range (0:10^12) in R +1.35
How to extract values from rasterstack with xy coordinates? +0.42
Memory efficient value replacement in a matrix/raster 0.00
Regex match for a specific directory +0.40
Character strings from a defined alphabet of characters 0.00
Split a character string by the symbol "*" +0.41
Subsetting the last entry of the day in a data frame +2.04
How do I get the nth minus the (n-1)th term from a dataframe in R? +1.90
How to get last data for each id/date? +0.40
Implementing R function in C++ Rcpp 0.00
Casting numeric from character imprecision 0.00
Pattern for specific substitution 0.00
R: how to expand a row containing a "list" to several row... +1.87
Remove all punctuation from a csv after importing it +2.24
Replacing seconds since the epoch with ordered digits in R -1.66
R Crop no-data of a raster -0.08
Capture text in the middle of a sentence using R +1.84
R number of items to replace is not a multiple of replacement length 0.00
Conversion of data frame from non atomic to atomic +0.11
max() function gives wrong output 0.00
Create a list of matrices with a loop and merging them in R 0.00
Conditional calculations in R +1.92
R Fill in empty cells after binning with cut() function 0.00
R: Swapping every second row in an array -0.84
Count the number of negative values at the end of a vector -1.21
R: summing over an interval of rows +2.03
How to draw the true density (for the specified gamma distribution)... +1.48
Cycling through a vector -0.58
Optimizing a "set in a string list" to a "set as a m... -1.71
R duplicate a matrix several times and then bind by rows together -0.38