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In Mathematica, the output of the last expression can be accessed using the symbol %.
In particular, one can do the following in Mathematica:
1+2
% / 3
This will return the output 1, because the output of the first expression is 3, and 3/3 = 1.
Is there an equivalent functionality in R?
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The last command displays information about the last logged-in users. It's pretty convenient and handy when we need to track login activities or investigate a possible security breach. The last command will, by default, take the system log file /var/log/wtmp as the data source to generate reports.
It depends on how you're running R. In the terminal, the “normal” way is Control + C – the “cancel” key combination. In the graphical R application and in RStudio, it's Escape .
Use'SHIFT-ENTER' to get to a new line in R without executing the command.
Here you go. Try ? .Last.value to learn more
1 + 2
.Last.value /3
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