Thank you for your contribution @dapeng .
- typo.
file name extensionnotextention - Are you sure this is not typo
return('NULLLL')as well? dir2,dir4could be better named- functions may be decomposed into smaller ones.
- Most functions could be unit tested and also you could configure your project on Travis-CI.com
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Thank you for the helpful comments!
NULLLLis deliberately misspelt for tracing (see the functioncount_space(). Although I agree thatdir2anddir4could be better named, such names are quite popular in R community. For examples,read.csv2()is a built-in function.Many thanks!
Thank you for your review, @justyy! Keep up the good work!