matt_k

matt_k has asked 12 questions and find answers to 5 problems.

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matt_k questions

Summing two dataframes based on common value
Pandas count the number of times an event has occurred in last n days by group
Conditionally evaluate heading using knitr in .Rmd file
How to define holidays for is.holiday() chron package in R
Using sample() with sample space size = 1
Logic of installation location of R packages under Linux
Filter data frame rows based on values in vector
Add user to group but not reflected when run "id"
calling conda source activate from bash script
Remove multiple columns from data.table

matt_k answers

How to produce a meaningful draftsman/correlation plot for discrete values
"Factor has new levels" error for variable I'm not using
Easier way to run a program in r. Two for's 47,022,066 operations