FAQ 7.23 How can I sort the rows of a data frame?
To sort the rows within a data frame, with respect to the values in one or more
of the columns, simply use order().
======= 2005-10-16 13:29:44 您在来信中写道：=======
>
>Dear all,
>
>I have a date frame like this:
>
>X Y Z
>22 24 4.3
>2.3 3.4 5.3
>.....
>....
>57.2 23.4 34
>
>What my purpose is: to sort the data frame by either X, Y or Z.
>sample output is (sorted by X) :
>
>X Y Z
>2.3 3.4 5.3
>.....
>......
>22 24 4.3
>...
>57.2 23.4 34
>
>I have no idea how to use sort, order or rank functions. Please help me out.
>Thanks!
>
>Leaf
>
>
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2005-10-16
------
Deparment of Sociology
Fudan University
My new mail addres is [EMAIL PROTECTED]
Blog:http://sociology.yculblog.com
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