[R] get statistics by group

[Bill Simpson]

On Wed, 14 Mar 2001, Yu-Ling Wu wrote:

> Thanks, it's helpful.
> I'm wondering how to make the output look better.
> Right now, I got the output look like this:
> 
> =======================================
> $"apple"
>               Fruit          Quty
>   apple        :   72   Min.   :  12.00  
>   banana       :    0   1st Qu.:  14.00  
>   orange       :    0   Median :  22.00  
>   cherry       :    0   Mean   :  25.00  
>   mengo        :    0   3rd Qu.:  42.00  
>   pineapple    :    0   Max.   :  70.00  
>  (Other)       :    0                   
> 
> 
> $"banana"
>               Fruit          Quty
>   banana       :   37   Min.   :  10.00  
>   apple        :    0   1st Qu.:  13.00  
>   orange       :    0   Median :  18.00  
>   cherry       :    0   Mean   :  19.00  
>   mengo        :    0   3rd Qu.:  32.00  
>   pineapple    :    0   Max.   :  65.00  
>  (Other)       :    0                   
> 
> ......and so on........
> 
> =======================================
> 
> 
> How to make it look like below and dilimited by Tab?
> 
> 
> =======================================
>         min   max  avg  median count
> apple   12     70   25     22   72
> banana  10     65   19     18   37
> orange  19     50   27     25   52
> 
> ....... and so on........
> 
> =======================================
You are aiming pretty high for a newbie!
Do you expect to be able to reformat the output of canned stats programs
like SPSS or SAS?

The short answer is that it is a lot of work to get R to put the results
in the format you want.

Bill


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