Strings can be combined using paste, paste0, and other utilities. When using paste, the default separator is space:
paste("I","think","therefore","I","am")
We can use a different separator by using the sep flag:
paste("I","think","therefore","I","am", sep="-")
paste0 is an extension of paste where the separator is null. As a result, all strings are concatenated into a single string unless separators are specified:
paste0("I","think","therefore","I","am")
In addition to the sep flag, there is also a collapse flag that can be used to separate the results:
paste("grade",c("A","B","C"), sep=" ") # paste with separator space paste("grade",c("A","B","C"), sep=" ", collapse=",") # paste with separator space and collapse with "," ...
