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akrun

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1527.10 (21,478th) 		Reputation
833,306 (14th)
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Title Δ
Split a matrix into submatrices by rownames 0.00
How to write to a text file ignoring NA? 0.00
Grouping & summarizing data frame by multiple different columns... 0.00
Multiply columns with rows by matching column name and row name in R +0.44
Concatenate a column from data.frame elements of a list 0.00
Subsetting rows in R -0.12
How to find tail rows of a data frame that satisfy set criteria? +0.48
averaging first 5 data points every year +0.64
How to convert all columns of a df from characters to numeric? -0.48
reshape data from wide to long with multiple rows 0.00
R data frame to array string 0.00
How to create Time-to-Event variable? 0.00
Advice on writing generic function to encode variables in R 0.00
Is there a function to find a value in name value pair vector? -1.77
R apply funciton on each cell in data frame 0.00
match text vectors from two data frames and return sum of third vec... +0.41
How to replace existing values by new values from look-up list with... -0.07
"Only the first element of list is used" in R 0.00
Merge single column dataframes in R 0.00
Replace each element equal to zero of a matrix with the correspondi... +2.59
How to count instances of a unique string in Java or R? +0.96
Aggregating by indeces and reweighting in R 0.00
Merge the results of table in R +2.20
If statement for dataframe +1.40
R - Select Columns based on the values on each respective columns -2.00
Rank and order in loop for different conditions for different subje... 0.00
stringr regex for first full *.zip filename -0.09
How to plot comparison of old data with new -1.83
Trying to get rid of a data frame row 0.00
Pull Value from Previous Interaction R -0.08
tidyr spread does not aggregate data 0.00
Incremental IDs in a R data frame -0.33
How to calculate central tendency for different groups using tapply 0.00
Counting function in R -0.46
How to delete part of the columns which includes NA +0.37
Equivalent to cumsum for string in R -0.83
R list of vectors to sparse matrix +2.26
get long format data frame from list +0.17
How to replace non diagonal elements of matrix by row? 0.00
select numeric columns and one column specified by name from data f... +0.43
Merge two data frames to get alternate rows of each data frame in s... +1.44
Filling in a ton of NA data in R by indices? -1.65
Finding Largest Element of a Matrix in R 0.00
Subsetting rows by group and logical expression - data.table 0.00
Using strsplit() in R, ignoring anything in parentheses +1.67
How do I pass names for new summary columns to data.table in a func... -0.22
R loop for : repeat a vector n time +2.07
Group by concatenate in R 0.00
Remove repeated numbers in a sequence +0.47
Convert a matrix into a specific list in R -1.58