Difference between paste() and paste0()

Question

Being new to R, can someone please explain the difference between paste() and paste0(), what I had understood from some post is that

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Answer 1

Let me put it in a simple words.. paste0 will automatically exclude the space in your concatenation..

For Example, I want to create a Training and test path..here's the code..

> Curr_date=format(Sys.Date(),"%d-%b-%y")

> currentTrainPath = paste("Train_",Curr_date,".RData")

> currentTrainPath

[1] "Train_ 11-Jun-16 .RData"

> Curr_date=format(Sys.Date(),"%d-%b-%y")

> currentTrainPath = paste0("Train_",Curr_date,".RData")

> currentTrainPath

[1] "Train_11-Jun-16.RData"