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alexis_laz

Rating
1516.53 (40,103rd) 		Reputation
10,928 (13,739th)
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Title Δ
How to check if a string is a cyclic rotation of another? +0.46
Element intersection between two matrices in R +1.41
Apply-family on two lists (to avoid nested for-loops) -0.95
Check if two out of 5 consecutive values are larger than x +0.05
Coding Matrix with overlap counts in R -0.34
capture column pattern frequency +1.04
find which row duplicates which row in a data.frame +0.66
Prevent element renaming when unlist -1.56
interleave nested ist of vectors in r with string padding based on... +1.86
Running a script in R for several individuals in a study 0.00
Count number of occurences of vector in list +2.14
Index.cond does not rearrange the panels in lattice 0.00
Check and count intersection columns values between data frames -0.53
R rearrange data +1.69
Vectorized pattern matching returning the pattern in R -0.45
Counting the number of ordered pairs in matrix in R -0.90
Count rows based on multiple consecutive time flows -0.13
Change matrix dimension +0.23
Encoding changes of elements in a vector in R -1.80
R search in multiple datatable columns -0.94
How can I find periodically appearing NA values in an 3D array (alo... +0.47
Test if date occurs in multiple date ranges with R -1.01
Converting list of mixed class elements to data frame while preserv... -1.92
Return vector position in list r 0.00
Nested ifelse with varying columns in data.table -0.10
Sorting list of list of elements of a custom class in R? +0.46
Adding counts in matrix in R 0.00
string index matching alternate 1 and -1 +2.44
Creating a R data frame in C/C++ 0.00
efficiently locf by groups in a single R data.table 0.00
Filter an R array based on colnames and rownames 0.00
Padding or shifting a multi-dimensional array +0.48
Subtracting a vector from each element in a "matrix of vectors... +1.58
replace elements of one vector by elements of another on particular... -0.29
r - copy missing values from other variables -0.33
Efficient way to find repeated runs of rows, remove, & count -0.36
Alternative to complex for loop to improve performance -0.53
Replacing values in multiple columns in dataframe +2.52
Count matching elements by row between two data tables in R +0.99
Match list to rows of matrix in R +1.28
Create a new column with non-null columns' names +2.07
looping over a vector with trycatch 0.00
Use start and end time to extract values from separate dataframe -0.52
Python's xrange alternative for R OR how to loop over large dat... +0.08
Grouping columns with same missing value patterns in R -1.95
Find the column index of an element for each row of a data frame +0.58
How to speed up fuzzy index matching in R (potentially using Rcpp)? 0.00
Determine whether column values are unique in data.table -0.77
Big matrix and memory problems 0.00
How to get the position of elements in a list? -1.14