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r:tldr:a58d1
r: Execute an R expression and then exit.
$ R -e ${expr}
try on your machine
The command "R -e ${expr}" is used to run a specific expression or command within the R programming language directly from the command line.
Here is an explanation of each component of the command:
- "R" indicates that the R interpreter or R runtime environment should be invoked.
- "-e" stands for "expression" and signifies that the following argument will be interpreted as an R expression or command to be executed.
- "${expr}" is a placeholder for the actual R expression or command that you want to execute. You need to replace "${expr}" with your specific expression or command.
For example, if you want to calculate the sum of two numbers (3 and 5) using R, you can use the command: R -e "3 + 5". This will execute the expression "3 + 5" using the R interpreter and provide the result on the command line. In this case, the command will output "8".
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.