At 10:31 AM +0200 8/18/11, Petr PIKAL wrote:
Hi
look into the *apply series of functions. In your case
apply(name.of.your.data.frame,2,min)
or
apply(name.of.your.data.frame,2,max)
will do. You can also put any summary function to your liking instead of
min/max.
And summary has its own data frame method so simply
summary(name.of.your.data.frame)
There is also fivenum function and more elaborated describe in Hmisc I
believe :-)
There are at least 3 different describe functions, all useful, but
with somewhat different output
describe (psych)
describe (Hmisc)
describe (prettyR)
One of these will probably do just what you want.
Bill
Regards
Petr
Best,
Daniel
Lao Meng wrote:
>
> Hi all:
> If I have a dataframe of N columns.If I wanna get the min(or max,or
> mean...etc)of the whole dataframe,how to do it quickly?
> What I can do is only:
> min(data[,1:ncol(data)])
>
> Any other suggestion?
>
> Thanks!
>
> best
>
> [[alternative HTML version deleted]]
>
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