[R] SQL vs R

Dr Eberhard W Lisse el at lisse.NA
Sat May 3 14:05:19 CEST 2014


Thank you very much, Mr Arkell.

el

On 2014-05-03, 07:11 , Bert Gunter wrote:
> By making the effort to learn R?
> 
> See e.g. the "Introduction to R" tutorial that ships with R.
> 
> -- Bert
> 
> Bert Gunter
> Genentech Nonclinical Biostatistics
> (650) 467-7374
> 
> "Data is not information. Information is not knowledge. And knowledge
> is certainly not wisdom."
> H. Gilbert Welch
> 
> 
> 
> 
> On Fri, May 2, 2014 at 2:23 PM, Dr Eberhard Lisse <nospam at lisse.na> wrote:
>> Hi,
>>
>> How do I do something like this without using sqldf?
>>
>> a <- sqldf("SELECT COUNT(*) FROM b WHERE c = 'd'")
>>
>> or
>>
>> e <- sqldf("SELECT f, COUNT(*) FROM b GROUP BY f ORDER BY f")
>>
>> greetings, el
>>
>> ______________________________________________
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>> and provide commented, minimal, self-contained, reproducible code.



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