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...called thres and before I run a script I set it to a value like thres<- -10 at the end of the execution I am issuing a save(variablename,file='Results') which will end up with a file saved at the current directory with the name Results   I would like though to use thres value and do the followingg save at the directory called 10 so to get ./10/Results, (yes I want this in a relative order)   My question is how I can also check if the directory exists R to create it?   I would like to thank you in advance for your help   B.R Alex [[alternative HTML version deleted]]