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Warnings do not stop the execution of a function. The warning messages can clutter the results. It is best to correct the cause of the warnings. In this instance, set two vectors a and b of the same length and complete the multiplication again.
R console
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("Advanced" users)
The R console can be opened from (1) the command-prompt in Windows or in the terminal in MacOs and Unix. By typing the command R, a R console opens automatically. This command is part of the R installation (see What is R programming language?.) Advanced users who are familiarised with such tools should explore this option.
Some R console have been implemented online, Tutorialspoint - R Tutorial provides many live examples that can be edited. R Studio also offers some R Notebooks. The latter interactively runs some R command and show the results in a more user-friendly manner. We have provided some information about the R Notebooks in our additional reading list, but we will not be using them in this tutorial.
Additional reading list |
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