Editing Statistics and Statistical Programming (Spring 2019)/R lecture outline: Week 3
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** seq() | ** seq() | ||
** sample(); and sampling into data.frames | ** sample(); and sampling into data.frames | ||
== Online only == | |||
* dates with POSIXct(). dates will almost always be given to you as characters, and you need to parse them | * dates with POSIXct(). dates will almost always be given to you as characters, and you need to parse them | ||
* tapply(), and putting things back into data.frames | * tapply(), and putting things back into data.frames | ||
* merge() | * merge() |