ThomasIsCoding

ThomasIsCoding has asked 20 questions and find answers to 429 problems.

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ThomasIsCoding questions

construct block matrix consisting of different powers of basis matrices
(Speed Challenge) Any faster way to compute distance matrix in terms of generic Hamming distance?
Any more concise `data.table` way to unnest a nested column in data.table?
With dplyr, how to update two twisted columns in parallel, rather than an iterative manner?
Efficiently enumerate all possible matrices with given constraints
Simpler code to create a cell array of char type with the same prefix + sequential indices?
any efficient way to spread the list names to its inside vectors?
How to efficiently divide pairs into clusters such that each cluster contains all entries of a given set
Backtracking: List all possible matrices with row and column sum constraints
How to make a `functools.reduce` implementation that looks similarly as `Reduce` in R?

ThomasIsCoding answers

Regex search across two tables
Finding all exact covers of size k
A case of indirect indexing
How can one sort data in r based on a condition being met and time ordering?
multiple data.table columns to one column of vectors
cumulative sum with two conditions
How do I write intersection and union of a set in Rmarkdown
Splitting dataframe depending on conditions
R igraph cluster nodes with the same colour (feature)
Mutate, across, and case_when