# Tab completion

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Let’s say your hands are aching from too much typing in of variables. What to do? Get a keyboard tray and learn proper ergonomics, of course.**The Data Monkey**, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here)Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.

But what if you just want to reduce the amount of typing in of variables you do for reasons of laziness…err…efficiency. Well, you can type the part of the variable that’s unique and then hit Tab. Stata or R (or many other programming environments) will both fill in the rest for you.

Suppose you have variables named:

AriWillGetRejectedFromHisFavoriteSchools

MaraWillGetInEverywhere

MarkWhosMark

DumplingsAndData

If you wanted the first variable to show up. Just type “A” and hit TAB.

But if you want the second, you’d have to type “Mara” and hit TAB, because until you hit the fourth letter it won’t be sure which variable you want.

To

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