[R] Apply() on columns

Petr PIKAL petr.pikal at precheza.cz
Mon Jun 25 13:44:26 CEST 2012


> 
> I do now know how to navigate through the table.
> But my question is, what kind of graphical and numerical summaries can I
> make with keeping in mind that I am interested in the average working 
hour
> per employee?

Rather vague question without data or code, so rather vague answer.

For numerical values summarised according to some factor see

?aggregate
?by
?tapply

For graphical summary maybe

?dotplot
?boxplot
or maybe you could try package ggplot2

Regards
Petr

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