## Select first or last rows of a data frame

We often do not need to look at all the contents of a data frame in the console. Instead, only parts of it are sufficient like the top or bottom retrieved through the head() and tail() functions.

• Select the top of a data frame
• Select the bottom of a data frame
• Specify the number of lines to select through the parameter n
head(___, n = ___)
tail(___, n = ___)
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