bgoldst

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bgoldst has asked 10 questions and find answers to 160 problems.

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bgoldst questions

Is it possible to pass command-line arguments to @ARGV when using the -n or -p options?
Is it possible to store invalid UTF-8 byte sequences in a postgres text column?
When calling the exec*() family of functions, do the char* elements of argv all have to be unique?
Is it possible to conditionally disable a global function definition using template metaprogramming?
Is it possible to use the data.table index-join-assignment idiom to do a left join and assign NAs in the non-matching rows of i to x?
flock(): is it possible to merely check if the file is already locked, without actually acquiring the lock if not?
Can you assign a substring of a std::string to itself?

bgoldst answers

Draw nearest value from sorted data frame into unsorted data frame
Looping over a vector and check for existence of data.frames with the same name
R how to conditionally update a numeric value in a data frame
Select n rows after specific number
Merging dates by id for two specific variables and create new variables
Find max/min for column with pattern in R
R: calculate rank sum automatically
Is hyphen (-) allowed in bash script arguments?
R Optimizing double for loop, matrix manipulation
Updating Matrix Using Data From Coerced Matrix