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alexis_laz

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1516.53 (40,103rd) 		Reputation
10,928 (13,739th)
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Title Δ
R, Trying to transform a vector of integer to a specific binary Mat... +0.16
R - Counting through a vector and refreshing at a certain value? -1.99
R - Recursive dichotomy over a series of data points -0.51
Why do two references to the same vector return different memory ad... +1.86
Matching rows to columns and counting same occurences R -0.88
How I can take mean for different subsets of a specific column in a... +0.16
find column value and name based on minimum value in other column +0.04
R: convert elements of list into expression from function input +1.72
How to create a list of unknown depth with variable names? +0.16
apply a function to a parameter grid and return a list of lists in... +0.48
How to calculate a faster days-in-month weighted average -1.98
How to order a list by a custom function, discarding duplicates? +0.61
Find list of values in list of ranges in R -1.92
Merging list with common elements +0.40
Overlap in row values from previous rows -0.15
R How to get the difference between current and next row that match... +0.21
Count sequences of numbers rowwise -1.43
%in% vs '==' when comparing date with date_as_string -1.03
Return closest date to a given date in R -0.72
finding interval indices of values in a vector, when intervals may... 0.00
Find number of matching rows between dataframes in a list -2.17
R eval has misleading documentation for the case that the envir arg... 0.00
How to convert DataFrames to nested lists -0.03
Fast ways to subset categorical data in R with multiple conditions -2.24
coercing data frame rows to matrix in R 0.00
Calculate sum sequence by sequence -0.03
Compute a number conditioning on next values in R -0.51
Replace NA with previous value with limit +0.90
remove vectors which are subsets of other vectors in a list -1.10
High memory consumption in unlist +2.61
Make a matrix of different list entries in r -1.26
R: preventing copies when passing a variable into a function +0.26
Copy down list elements to fill NA list elements +2.67
Find common elements from multiple categories within dataframe? +0.43
Conditional sum in rolling window -1.87
How to find and name contiguous non-zero entries in a sparse matrix... 0.00
Rolling count of exceedances by variable over time series in R -0.36
Strange behavior extracting function arguments values in R 0.00
Rolling sums for groups with uneven time gaps -0.68
Define the value of a column in a dataframe based on 2 keys from a... -0.59
How can I create a new column in a dataframe based on permutations... -0.83
Discrepancies in Benchmark and Processing Time Results 0.00
R: calculate the number of occurrences of a specific event in a spe... +1.20
Counting new values not occuring earlier and not occuring in last g... +1.31
R: Aggregating History by ID and By Specified Data -0.95
Finding specific strings in an array using R -0.19
R: calculate time difference between specific events +1.10
R data.table apply function to all pair of columns +1.98
Merge columns of a dataframe by two conditions using aggregate -1.50
R: data.table compare sets of rows +2.55