Removing duplicate dates based on another column in R?

You could sort your data by date and mh using plyr::arrange then remove duplicates.

Similar to flodel, but using base R and ensuring that date is a real DateTimeClass.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.